56818620464 has 20 divisors (see below), whose sum is σ = 116561729304. Its totient is φ = 26738174208.

The previous prime is 56818620461. The next prime is 56818620473. The reversal of 56818620464 is 46402681865.

It is not an unprimeable number, because it can be changed into a prime (56818620461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104445722 + ... + 104446265.

Almost surely, 2^56818620464 is an apocalyptic number.

It is an amenable number.

56818620464 is an abundant number, since it is smaller than the sum of its proper divisors (59743108840).

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

56818620464 is a wasteful number, since it uses less digits than its factorization.

56818620464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208892012 (or 208892006 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 56818620464 in words is "fifty-six billion, eight hundred eighteen million, six hundred twenty thousand, four hundred sixty-four".