56918984929 has 9 divisors (see below), whose sum is σ = 57225282321. Its totient is φ = 56614322100.

The previous prime is 56918984921. The next prime is 56918984953. The reversal of 56918984929 is 92948981965.

The square root of 56918984929 is 238577.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 56918984929 - 2³ = 56918984921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56918984921) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 54156454 + ... + 54157504.

Almost surely, 2^56918984929 is an apocalyptic number.

56918984929 is the 238577-th square number.

56918984929 is the 119289-th centered octagonal number.

It is an amenable number.

56918984929 is a deficient number, since it is larger than the sum of its proper divisors (306297392).

56918984929 is an frugal number, since it uses more digits than its factorization.

56918984929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556 (or 1278 counting only the distinct ones).

The product of its digits is 100776960, while the sum is 70.

The spelling of 56918984929 in words is "fifty-six billion, nine hundred eighteen million, nine hundred eighty-four thousand, nine hundred twenty-nine".