56577567878 has 8 divisors (see below), whose sum is σ = 91394532768. Its totient is φ = 26112723624.

The previous prime is 56577567869. The next prime is 56577567931. The reversal of 56577567878 is 87876577565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1088030126 + ... + 1088030177.

It is an arithmetic number, because the mean of its divisors is an integer number (11424316596).

Almost surely, 2^56577567878 is an apocalyptic number.

56577567878 is a deficient number, since it is larger than the sum of its proper divisors (34816964890).

56577567878 is a wasteful number, since it uses less digits than its factorization.

56577567878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176060318.

The product of its digits is 691488000, while the sum is 71.

The spelling of 56577567878 in words is "fifty-six billion, five hundred seventy-seven million, five hundred sixty-seven thousand, eight hundred seventy-eight".