The maximum number in mathematical sense does not exist. But there is a number. There is no quantity in the universe that can exceed it. This number is 100 to the power of 10, also called "Nikolai Gogol" (transliteration of gogul). At present, the fastest electronic computer in the world operates 10 billion times per second (10 to the 9th power). Assuming that it has been running since the formation of the universe (about 20 billion years ago), today, its total running amount is less than 100 10 power. The area of the earth is about 5 10000000 square kilometers. If expressed in square millimeters, it is only the 20th power of 5× 10. The volume of the earth is 108300000000 cubic kilometers. If expressed in cubic millimeters, it is only the 30th power of 10. 1 cubic millimeter is equivalent to the size of a needle, and can hold 10 grain of fine sand at most, so the whole earth can only hold 3 1 power of 10 grain of fine sand. These figures are far less than those of "Gugor". Interstellar distance is generally measured in light years. 1 light-year is the distance traveled by light in one year, which is about 95000000000000 kilometers. The space we can observe at present (about 10 billion light years), expressed in the smallest length unit (millionth of a millimeter), is only the 36th power of10. The universe is the largest one of our research objects, and the nucleus (with a diameter of 13 to 12 cm) is the smallest one. The size (linearity) of these two research objects is only 40 times that of 10. Let's talk about time. Let's choose a minimum time unit with physical significance to represent the longest time in the universe-"cosmic age". We take the time it takes for light to pass through a space as big as a nucleus as the unit of calculating time, so the "cosmic age" is 40 times of 10 of this unit. Let's calculate the total number of elementary particles in the whole universe, including protons, neutrons, neutrinos and photons without static mass. Although a grain of dust contains billions of elementary particles, there are about 80th power elementary particles of 10 in the whole universe. This figure is only 100 billion times that of "Gugor". Don't be silly, the biggest "number" in the world is 9; Of course, there is no largest number in the world.