54787736720 has 80 divisors (see below), whose sum is σ = 128355891840. Its totient is φ = 21748070400.

The previous prime is 54787736659. The next prime is 54787736737. The reversal of 54787736720 is 2763778745.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6055400 + ... + 6064440.

It is an arithmetic number, because the mean of its divisors is an integer number (1604448648).

Almost surely, 2^54787736720 is an apocalyptic number.

It is an amenable number.

54787736720 is an abundant number, since it is smaller than the sum of its proper divisors (73568155120).

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

54787736720 is a wasteful number, since it uses less digits than its factorization.

54787736720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9624 (or 9618 counting only the distinct ones).

The product of its (nonzero) digits is 13829760, while the sum is 56.

The spelling of 54787736720 in words is "fifty-four billion, seven hundred eighty-seven million, seven hundred thirty-six thousand, seven hundred twenty".