54658966878 has 24 divisors (see below), whose sum is σ = 118549764216. Its totient is φ = 18200886000.

The previous prime is 54658966867. The next prime is 54658966891. The reversal of 54658966878 is 87866985645.

It is a happy number.

54658966878 is a `hidden beast` number, since 5 + 465 + 8 + 96 + 6 + 8 + 78 = 666.

It is a Curzon number.

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, 1546173 + ... + 1581128.

It is an arithmetic number, because the mean of its divisors is an integer number (4939573509).

Almost surely, 2^54658966878 is an apocalyptic number.

54658966878 is an abundant number, since it is smaller than the sum of its proper divisors (63890797338).

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

54658966878 is a wasteful number, since it uses less digits than its factorization.

54658966878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128280 (or 3128277 counting only the distinct ones).

The product of its digits is 696729600, while the sum is 72.

The spelling of 54658966878 in words is "fifty-four billion, six hundred fifty-eight million, nine hundred sixty-six thousand, eight hundred seventy-eight".