51630312362431 has 16 divisors (see below), whose sum is σ = 57388424336928. Its totient is φ = 46049661673600.

The previous prime is 51630312362353. The next prime is 51630312362437. The reversal of 51630312362431 is 13426321303615.

It is a cyclic number.

It is not a de Polignac number, because 51630312362431 - 2²⁵ = 51630278807999 is a prime.

It is a super-2 number, since 2×51630312362431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51630312362437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18259125 + ... + 20896321.

It is an arithmetic number, because the mean of its divisors is an integer number (3586776521058).

Almost surely, 2^{51630312362431} is an apocalyptic number.

51630312362431 is a deficient number, since it is larger than the sum of its proper divisors (5758111974497).

51630312362431 is a wasteful number, since it uses less digits than its factorization.

51630312362431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2670842.

The product of its (nonzero) digits is 233280, while the sum is 40.

The spelling of 51630312362431 in words is "fifty-one trillion, six hundred thirty billion, three hundred twelve million, three hundred sixty-two thousand, four hundred thirty-one".