51477609016 has 64 divisors (see below), whose sum is σ = 103952678400. Its totient is φ = 23811620352.

The previous prime is 51477608951. The next prime is 51477609049. The reversal of 51477609016 is 61090677415.

It is a congruent number.

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, 2428335 + ... + 2449441.

It is an arithmetic number, because the mean of its divisors is an integer number (1624260600).

Almost surely, 2^51477609016 is an apocalyptic number.

It is an amenable number.

51477609016 is an abundant number, since it is smaller than the sum of its proper divisors (52475069384).

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

51477609016 is a wasteful number, since it uses less digits than its factorization.

51477609016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21436 (or 21432 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 51477609016 in words is "fifty-one billion, four hundred seventy-seven million, six hundred nine thousand, sixteen".