54239889756 has 24 divisors (see below), whose sum is σ = 136295107984. Its totient is φ = 16689196800.

The previous prime is 54239889709. The next prime is 54239889799. The reversal of 54239889756 is 65798893245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173845645 + ... + 173845956.

Almost surely, 2^54239889756 is an apocalyptic number.

It is an amenable number.

54239889756 is an abundant number, since it is smaller than the sum of its proper divisors (82055218228).

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

54239889756 is a wasteful number, since it uses less digits than its factorization.

54239889756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347691621 (or 347691619 counting only the distinct ones).

The product of its digits is 130636800, while the sum is 66.

The spelling of 54239889756 in words is "fifty-four billion, two hundred thirty-nine million, eight hundred eighty-nine thousand, seven hundred fifty-six".