51713565667365 has 32 divisors (see below), whose sum is σ = 94751451648000. Its totient is φ = 23593111412544.

The previous prime is 51713565667339. The next prime is 51713565667427. The reversal of 51713565667365 is 56376656531715.

It is a happy number.

It is not a de Polignac number, because 51713565667365 - 2¹⁰ = 51713565666341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51713565667296 and 51713565667305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 493444749 + ... + 493549538.

It is an arithmetic number, because the mean of its divisors is an integer number (2960982864000).

Almost surely, 2^{51713565667365} is an apocalyptic number.

It is an amenable number.

51713565667365 is a deficient number, since it is larger than the sum of its proper divisors (43037885980635).

51713565667365 is a wasteful number, since it uses less digits than its factorization.

51713565667365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986994801.

The product of its digits is 357210000, while the sum is 66.

The spelling of 51713565667365 in words is "fifty-one trillion, seven hundred thirteen billion, five hundred sixty-five million, six hundred sixty-seven thousand, three hundred sixty-five".