51631105654422 has 40 divisors (see below), whose sum is σ = 132219339350736. Its totient is φ = 14751744472368.

The previous prime is 51631105654411. The next prime is 51631105654451. The reversal of 51631105654422 is 22445650113615.

51631105654422 is a `hidden beast` number, since 5 + 1 + 6 + 31 + 1 + 0 + 56 + 544 + 22 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22765036633 + ... + 22765038900.

Almost surely, 2^{51631105654422} is an apocalyptic number.

51631105654422 is an abundant number, since it is smaller than the sum of its proper divisors (80588233696314).

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

51631105654422 is a wasteful number, since it uses less digits than its factorization.

51631105654422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45530075554 (or 45530075545 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 51631105654422 in words is "fifty-one trillion, six hundred thirty-one billion, one hundred five million, six hundred fifty-four thousand, four hundred twenty-two".