54879718079 has 4 divisors (see below), whose sum is σ = 54880197984. Its totient is φ = 54879238176.

The previous prime is 54879718073. The next prime is 54879718129. The reversal of 54879718079 is 97081797845.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54879718079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54879718073) 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 3 ways as a sum of consecutive naturals, for example, 42074 + ... + 333960.

It is an arithmetic number, because the mean of its divisors is an integer number (13720049496).

Almost surely, 2^54879718079 is an apocalyptic number.

54879718079 is a deficient number, since it is larger than the sum of its proper divisors (479905).

54879718079 is a wasteful number, since it uses less digits than its factorization.

54879718079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479904.

The product of its (nonzero) digits is 35562240, while the sum is 65.

The spelling of 54879718079 in words is "fifty-four billion, eight hundred seventy-nine million, seven hundred eighteen thousand, seventy-nine".