56638476630 has 48 divisors (see below), whose sum is σ = 147304872000. Its totient is φ = 15098995584.

The previous prime is 56638476617. The next prime is 56638476707. The reversal of 56638476630 is 3667483665.

56638476630 is a `hidden beast` number, since 56 + 63 + 8 + 476 + 63 + 0 = 666.

It is a congruent number.

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, 206746 + ... + 394994.

It is an arithmetic number, because the mean of its divisors is an integer number (3068851500).

Almost surely, 2^56638476630 is an apocalyptic number.

56638476630 is an abundant number, since it is smaller than the sum of its proper divisors (90666395370).

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

56638476630 is a wasteful number, since it uses less digits than its factorization.

56638476630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191605 (or 191602 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 54.

The spelling of 56638476630 in words is "fifty-six billion, six hundred thirty-eight million, four hundred seventy-six thousand, six hundred thirty".