56430215808 has 64 divisors (see below), whose sum is σ = 151376951520. Its totient is φ = 18623820800.

The previous prime is 56430215773. The next prime is 56430215857. The reversal of 56430215808 is 80851203465.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×56430215808² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56430215808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688710 + ... + 766277.

Almost surely, 2^56430215808 is an apocalyptic number.

It is an amenable number.

56430215808 is an abundant number, since it is smaller than the sum of its proper divisors (94946735712).

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

56430215808 is a wasteful number, since it uses less digits than its factorization.

56430215808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455105 (or 1455093 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 56430215808 in words is "fifty-six billion, four hundred thirty million, two hundred fifteen thousand, eight hundred eight".