20858372766280 has 512 divisors, whose sum is σ = 57388223692800. Its totient is φ = 6672327008256.

The previous prime is 20858372766247. The next prime is 20858372766289. The reversal of 20858372766280 is 8266727385802.

It is not an unprimeable number, because it can be changed into a prime (20858372766289) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11293108317 + ... + 11293110163.

It is an arithmetic number, because the mean of its divisors is an integer number (112086374400).

Almost surely, 2^{20858372766280} is an apocalyptic number.

20858372766280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20858372766280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28694111846400).

20858372766280 is an abundant number, since it is smaller than the sum of its proper divisors (36529850926520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20858372766280 is a wasteful number, since it uses less digits than its factorization.

20858372766280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301 (or 2297 counting only the distinct ones).

The product of its (nonzero) digits is 108380160, while the sum is 64.

The spelling of 20858372766280 in words is "twenty trillion, eight hundred fifty-eight billion, three hundred seventy-two million, seven hundred sixty-six thousand, two hundred eighty".