56444064438 has 32 divisors (see below), whose sum is σ = 113684645376. Its totient is φ = 18682099488.

The previous prime is 56444064407. The next prime is 56444064473. The reversal of 56444064438 is 83446044465.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1414995 + ... + 1454337.

It is an arithmetic number, because the mean of its divisors is an integer number (3552645168).

Almost surely, 2^56444064438 is an apocalyptic number.

56444064438 is an abundant number, since it is smaller than the sum of its proper divisors (57240580938).

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

56444064438 is a wasteful number, since it uses less digits than its factorization.

56444064438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41028.

The product of its (nonzero) digits is 4423680, while the sum is 48.

The spelling of 56444064438 in words is "fifty-six billion, four hundred forty-four million, sixty-four thousand, four hundred thirty-eight".