56698578992 has 40 divisors (see below), whose sum is σ = 120363583440. Its totient is φ = 25659521280.

The previous prime is 56698578973. The next prime is 56698578997. The reversal of 56698578992 is 29987589665.

It is not an unprimeable number, because it can be changed into a prime (56698578997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 663083 + ... + 743690.

It is an arithmetic number, because the mean of its divisors is an integer number (3009089586).

Almost surely, 2^56698578992 is an apocalyptic number.

It is an amenable number.

56698578992 is an abundant number, since it is smaller than the sum of its proper divisors (63665004448).

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

56698578992 is a wasteful number, since it uses less digits than its factorization.

56698578992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407021 (or 1407015 counting only the distinct ones).

The product of its digits is 587865600, while the sum is 74.

The spelling of 56698578992 in words is "fifty-six billion, six hundred ninety-eight million, five hundred seventy-eight thousand, nine hundred ninety-two".