51469665013 has 16 divisors (see below), whose sum is σ = 56153825280. Its totient is φ = 46889571456.

The previous prime is 51469665007. The next prime is 51469665019. The reversal of 51469665013 is 31056696415.

It is an interprime number because it is at equal distance from previous prime (51469665007) and next prime (51469665019).

It is a de Polignac number, because none of the positive numbers 2^k-51469665013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51469665019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2842956 + ... + 2861002.

It is an arithmetic number, because the mean of its divisors is an integer number (3509614080).

Almost surely, 2^51469665013 is an apocalyptic number.

It is an amenable number.

51469665013 is a deficient number, since it is larger than the sum of its proper divisors (4684160267).

51469665013 is a wasteful number, since it uses less digits than its factorization.

51469665013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20916.

The product of its (nonzero) digits is 583200, while the sum is 46.

The spelling of 51469665013 in words is "fifty-one billion, four hundred sixty-nine million, six hundred sixty-five thousand, thirteen".