54439059864 has 64 divisors (see below), whose sum is σ = 159157405440. Its totient is φ = 15192293760.

The previous prime is 54439059847. The next prime is 54439059919. The reversal of 54439059864 is 46895093445.

It is a super-2 number, since 2×54439059864² (a number of 22 digits) contains 22 as substring.

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, 3760707 + ... + 3775154.

It is an arithmetic number, because the mean of its divisors is an integer number (2486834460).

Almost surely, 2^54439059864 is an apocalyptic number.

It is an amenable number.

54439059864 is an abundant number, since it is smaller than the sum of its proper divisors (104718345576).

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

54439059864 is a wasteful number, since it uses less digits than its factorization.

54439059864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7535920 (or 7535916 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 57.

The spelling of 54439059864 in words is "fifty-four billion, four hundred thirty-nine million, fifty-nine thousand, eight hundred sixty-four".