56581764672 has 56 divisors (see below), whose sum is σ = 149752868896. Its totient is φ = 18854673408.

The previous prime is 56581764641. The next prime is 56581764689. The reversal of 56581764672 is 27646718565.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 590388 + ... + 679500.

Almost surely, 2^56581764672 is an apocalyptic number.

It is an amenable number.

56581764672 is an abundant number, since it is smaller than the sum of its proper divisors (93171104224).

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

56581764672 is a wasteful number, since it uses less digits than its factorization.

56581764672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92435 (or 92425 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 57.

The spelling of 56581764672 in words is "fifty-six billion, five hundred eighty-one million, seven hundred sixty-four thousand, six hundred seventy-two".