51630316511613 has 16 divisors (see below), whose sum is σ = 79047634223616. Its totient is φ = 29363213179440.

The previous prime is 51630316511561. The next prime is 51630316511663. The reversal of 51630316511613 is 31611561303615.

It is a happy number.

It is not a de Polignac number, because 51630316511613 - 2³⁴ = 51613136642429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51630316511663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5826029931 + ... + 5826038792.

It is an arithmetic number, because the mean of its divisors is an integer number (4940477138976).

Almost surely, 2^{51630316511613} is an apocalyptic number.

It is an amenable number.

51630316511613 is a deficient number, since it is larger than the sum of its proper divisors (27417317712003).

51630316511613 is a wasteful number, since it uses less digits than its factorization.

51630316511613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11652068944.

The product of its (nonzero) digits is 145800, while the sum is 42.

The spelling of 51630316511613 in words is "fifty-one trillion, six hundred thirty billion, three hundred sixteen million, five hundred eleven thousand, six hundred thirteen".