56623764408 has 32 divisors (see below), whose sum is σ = 143149971600. Its totient is φ = 18662513408.

The previous prime is 56623764391. The next prime is 56623764409. The reversal of 56623764408 is 80446732665.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56623764409) 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 7 ways as a sum of consecutive naturals, for example, 13252491 + ... + 13256762.

Almost surely, 2^56623764408 is an apocalyptic number.

It is an amenable number.

56623764408 is an abundant number, since it is smaller than the sum of its proper divisors (86526207192).

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

56623764408 is a wasteful number, since it uses less digits than its factorization.

56623764408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26509351 (or 26509347 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 51.

The spelling of 56623764408 in words is "fifty-six billion, six hundred twenty-three million, seven hundred sixty-four thousand, four hundred eight".