513516674431 has 4 divisors (see below), whose sum is σ = 514708128864. Its totient is φ = 512325220000.

The previous prime is 513516674393. The next prime is 513516674441. The reversal of 513516674431 is 134476615315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 513516674431 - 2²⁵ = 513483119999 is a prime.

It is a super-2 number, since 2×513516674431² (a number of 24 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 (513516674441) 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 3 ways as a sum of consecutive naturals, for example, 595726570 + ... + 595727431.

It is an arithmetic number, because the mean of its divisors is an integer number (128677032216).

Almost surely, 2^513516674431 is an apocalyptic number.

513516674431 is a deficient number, since it is larger than the sum of its proper divisors (1191454433).

513516674431 is a wasteful number, since it uses less digits than its factorization.

513516674431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191454432.

The product of its digits is 907200, while the sum is 46.

The spelling of 513516674431 in words is "five hundred thirteen billion, five hundred sixteen million, six hundred seventy-four thousand, four hundred thirty-one".