20712052900 has 72 divisors (see below), whose sum is σ = 56035538496. Its totient is φ = 6455702400.

The previous prime is 20712052873. The next prime is 20712052957. The reversal of 20712052900 is 925021702.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1337239 + ... + 1352638.

It is an arithmetic number, because the mean of its divisors is an integer number (778271368).

Almost surely, 2^20712052900 is an apocalyptic number.

20712052900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20712052900 is an abundant number, since it is smaller than the sum of its proper divisors (35323485596).

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

20712052900 is a wasteful number, since it uses less digits than its factorization.

20712052900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689909 (or 2689902 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The spelling of 20712052900 in words is "twenty billion, seven hundred twelve million, fifty-two thousand, nine hundred".