54405963920 has 80 divisors (see below), whose sum is σ = 157706656128. Its totient is φ = 16957701120.

The previous prime is 54405963917. The next prime is 54405963949. The reversal of 54405963920 is 2936950445.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4409909 + ... + 4422228.

Almost surely, 2^54405963920 is an apocalyptic number.

It is an amenable number.

54405963920 is an abundant number, since it is smaller than the sum of its proper divisors (103300692208).

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

54405963920 is a wasteful number, since it uses less digits than its factorization.

54405963920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8832168 (or 8832162 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 54405963920 in words is "fifty-four billion, four hundred five million, nine hundred sixty-three thousand, nine hundred twenty".