513349738631 has 8 divisors (see below), whose sum is σ = 514325679264. Its totient is φ = 512373993760.

The previous prime is 513349738609. The next prime is 513349738669. The reversal of 513349738631 is 136837943315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513349738631 is a prime.

It is a super-2 number, since 2×513349738631² (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 (513349738691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5878121 + ... + 5964813.

It is an arithmetic number, because the mean of its divisors is an integer number (64290709908).

Almost surely, 2^513349738631 is an apocalyptic number.

513349738631 is a deficient number, since it is larger than the sum of its proper divisors (975940633).

513349738631 is a wasteful number, since it uses less digits than its factorization.

513349738631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97881.

The product of its digits is 4898880, while the sum is 53.

The spelling of 513349738631 in words is "five hundred thirteen billion, three hundred forty-nine million, seven hundred thirty-eight thousand, six hundred thirty-one".