56409577888 has 48 divisors (see below), whose sum is σ = 123778005120. Its totient is φ = 25148537856.

The previous prime is 56409577859. The next prime is 56409577909. The reversal of 56409577888 is 88877590465.

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, 2718456 + ... + 2739127.

It is an arithmetic number, because the mean of its divisors is an integer number (2578708440).

Almost surely, 2^56409577888 is an apocalyptic number.

It is an amenable number.

56409577888 is an abundant number, since it is smaller than the sum of its proper divisors (67368427232).

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

56409577888 is a wasteful number, since it uses less digits than its factorization.

56409577888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5457629 (or 5457621 counting only the distinct ones).

The product of its (nonzero) digits is 135475200, while the sum is 67.

The spelling of 56409577888 in words is "fifty-six billion, four hundred nine million, five hundred seventy-seven thousand, eight hundred eighty-eight".