51631675885 has 16 divisors (see below), whose sum is σ = 65791694016. Its totient is φ = 38763559168.

The previous prime is 51631675877. The next prime is 51631675933. The reversal of 51631675885 is 58857613615.

It is a cyclic number.

It is not a de Polignac number, because 51631675885 - 2³ = 51631675877 is a prime.

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, 845767 + ... + 904756.

It is an arithmetic number, because the mean of its divisors is an integer number (4111980876).

Almost surely, 2^51631675885 is an apocalyptic number.

It is an amenable number.

51631675885 is a deficient number, since it is larger than the sum of its proper divisors (14160018131).

51631675885 is a wasteful number, since it uses less digits than its factorization.

51631675885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750892.

The product of its digits is 6048000, while the sum is 55.

The spelling of 51631675885 in words is "fifty-one billion, six hundred thirty-one million, six hundred seventy-five thousand, eight hundred eighty-five".