515013891513 has 12 divisors (see below), whose sum is σ = 754786199664. Its totient is φ = 312129631000.

The previous prime is 515013891479. The next prime is 515013891551. The reversal of 515013891513 is 315198310515.

It is not a de Polignac number, because 515013891513 - 2¹⁸ = 515013629369 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (515013891113) 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 11 ways as a sum of consecutive naturals, for example, 709385163 + ... + 709385888.

It is an arithmetic number, because the mean of its divisors is an integer number (62898849972).

Almost surely, 2^515013891513 is an apocalyptic number.

It is an amenable number.

515013891513 is a deficient number, since it is larger than the sum of its proper divisors (239772308151).

515013891513 is a wasteful number, since it uses less digits than its factorization.

515013891513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418771076 (or 1418771065 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 42.

The spelling of 515013891513 in words is "five hundred fifteen billion, thirteen million, eight hundred ninety-one thousand, five hundred thirteen".