51172655908 has 12 divisors (see below), whose sum is σ = 97693252272. Its totient is φ = 23260298120.

The previous prime is 51172655887. The next prime is 51172655917. The reversal of 51172655908 is 80955627115.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581507410 + ... + 581507497.

It is an arithmetic number, because the mean of its divisors is an integer number (8141104356).

Almost surely, 2^51172655908 is an apocalyptic number.

It is an amenable number.

51172655908 is a deficient number, since it is larger than the sum of its proper divisors (46520596364).

51172655908 is a wasteful number, since it uses less digits than its factorization.

51172655908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163014922 (or 1163014920 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 49.

The spelling of 51172655908 in words is "fifty-one billion, one hundred seventy-two million, six hundred fifty-five thousand, nine hundred eight".