513013739187 has 6 divisors (see below), whose sum is σ = 684019973028. Its totient is φ = 342008332404.

The previous prime is 513013739129. The next prime is 513013739221. The reversal of 513013739187 is 781937310315.

It is not a de Polignac number, because 513013739187 - 2⁶ = 513013739123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (513013739087) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1033818 + ... + 1447344.

It is an arithmetic number, because the mean of its divisors is an integer number (114003328838).

Almost surely, 2^513013739187 is an apocalyptic number.

513013739187 is a deficient number, since it is larger than the sum of its proper divisors (171006233841).

513013739187 is an frugal number, since it uses more digits than its factorization.

513013739187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827057 (or 413530 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 48.

Multiplying 513013739187 by its sum of digits (48), we get a square (24624659480976 = 4962324²).

The spelling of 513013739187 in words is "five hundred thirteen billion, thirteen million, seven hundred thirty-nine thousand, one hundred eighty-seven".