51608979696 has 40 divisors (see below), whose sum is σ = 135010842880. Its totient is φ = 16985232576.

The previous prime is 51608979679. The next prime is 51608979727. The reversal of 51608979696 is 69697980615.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6801190 + ... + 6808773.

It is an arithmetic number, because the mean of its divisors is an integer number (3375271072).

Almost surely, 2^51608979696 is an apocalyptic number.

It is an amenable number.

51608979696 is an abundant number, since it is smaller than the sum of its proper divisors (83401863184).

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

51608979696 is a wasteful number, since it uses less digits than its factorization.

51608979696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13610053 (or 13610047 counting only the distinct ones).

The product of its (nonzero) digits is 44089920, while the sum is 66.

The spelling of 51608979696 in words is "fifty-one billion, six hundred eight million, nine hundred seventy-nine thousand, six hundred ninety-six".