20792872520 has 64 divisors (see below), whose sum is σ = 53826336000. Its totient is φ = 7081125120.

The previous prime is 20792872517. The next prime is 20792872549. The reversal of 20792872520 is 2527829702.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207476 + ... + 290915.

It is an arithmetic number, because the mean of its divisors is an integer number (841036500).

Almost surely, 2^20792872520 is an apocalyptic number.

20792872520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20792872520 is an abundant number, since it is smaller than the sum of its proper divisors (33033463480).

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

20792872520 is a wasteful number, since it uses less digits than its factorization.

20792872520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498558 (or 498554 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 20792872520 in words is "twenty billion, seven hundred ninety-two million, eight hundred seventy-two thousand, five hundred twenty".