56428194972 has 48 divisors (see below), whose sum is σ = 137269883520. Its totient is φ = 18025320768.

The previous prime is 56428194887. The next prime is 56428195003. The reversal of 56428194972 is 27949182465.

56428194972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 1004322 + ... + 1059017.

It is an arithmetic number, because the mean of its divisors is an integer number (2859789240).

Almost surely, 2^56428194972 is an apocalyptic number.

It is an amenable number.

56428194972 is an abundant number, since it is smaller than the sum of its proper divisors (80841688548).

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

56428194972 is a wasteful number, since it uses less digits than its factorization.

56428194972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063442 (or 2063440 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 57.

The spelling of 56428194972 in words is "fifty-six billion, four hundred twenty-eight million, one hundred ninety-four thousand, nine hundred seventy-two".