54968881815 has 12 divisors (see below), whose sum is σ = 95279395224. Its totient is φ = 29316736944.

The previous prime is 54968881783. The next prime is 54968881873. The reversal of 54968881815 is 51818886945.

54968881815 is a `hidden beast` number, since 549 + 6 + 8 + 8 + 8 + 1 + 81 + 5 = 666.

54968881815 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54968881815 - 2⁵ = 54968881783 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 610765309 + ... + 610765398.

It is an arithmetic number, because the mean of its divisors is an integer number (7939949602).

Almost surely, 2^54968881815 is an apocalyptic number.

54968881815 is a deficient number, since it is larger than the sum of its proper divisors (40310513409).

54968881815 is a wasteful number, since it uses less digits than its factorization.

54968881815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221530718 (or 1221530715 counting only the distinct ones).

The product of its digits is 22118400, while the sum is 63.

The spelling of 54968881815 in words is "fifty-four billion, nine hundred sixty-eight million, eight hundred eighty-one thousand, eight hundred fifteen".