54799312878 has 24 divisors (see below), whose sum is σ = 124980889800. Its totient is φ = 17305046064.

The previous prime is 54799312871. The next prime is 54799312921. The reversal of 54799312878 is 87821399745.

54799312878 is a `hidden beast` number, since 5 + 479 + 93 + 1 + 2 + 8 + 78 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54799312871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80115613 + ... + 80116296.

It is an arithmetic number, because the mean of its divisors is an integer number (5207537075).

Almost surely, 2^54799312878 is an apocalyptic number.

54799312878 is an abundant number, since it is smaller than the sum of its proper divisors (70181576922).

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

54799312878 is a wasteful number, since it uses less digits than its factorization.

54799312878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160231936 (or 160231933 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The spelling of 54799312878 in words is "fifty-four billion, seven hundred ninety-nine million, three hundred twelve thousand, eight hundred seventy-eight".