513397132519 has 4 divisors (see below), whose sum is σ = 513441337744. Its totient is φ = 513352927296.

The previous prime is 513397132499. The next prime is 513397132561. The reversal of 513397132519 is 915231793315.

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 513397132519 - 2¹³ = 513397124327 is a prime.

It is a super-2 number, since 2×513397132519² (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 (513397192519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22085187 + ... + 22108420.

It is an arithmetic number, because the mean of its divisors is an integer number (128360334436).

Almost surely, 2^513397132519 is an apocalyptic number.

513397132519 is a deficient number, since it is larger than the sum of its proper divisors (44205225).

513397132519 is a wasteful number, since it uses less digits than its factorization.

513397132519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44205224.

The product of its digits is 765450, while the sum is 49.

The spelling of 513397132519 in words is "five hundred thirteen billion, three hundred ninety-seven million, one hundred thirty-two thousand, five hundred nineteen".