56672021892 has 24 divisors (see below), whose sum is σ = 132722676352. Its totient is φ = 18820965600.

The previous prime is 56672021881. The next prime is 56672021893. The reversal of 56672021892 is 29812027665.

56672021892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (56672021893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8710159 + ... + 8716662.

Almost surely, 2^56672021892 is an apocalyptic number.

It is an amenable number.

56672021892 is an abundant number, since it is smaller than the sum of its proper divisors (76050654460).

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

56672021892 is a wasteful number, since it uses less digits than its factorization.

56672021892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17427099 (or 17427097 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 56672021892 in words is "fifty-six billion, six hundred seventy-two million, twenty-one thousand, eight hundred ninety-two".