513761013656 has 16 divisors (see below), whose sum is σ = 1050874800840. Its totient is φ = 233527733440.

The previous prime is 513761013629. The next prime is 513761013697. The reversal of 513761013656 is 656310167315.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2919096581 + ... + 2919096756.

Almost surely, 2^513761013656 is an apocalyptic number.

It is an amenable number.

513761013656 is an abundant number, since it is smaller than the sum of its proper divisors (537113787184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513761013656 is a wasteful number, since it uses less digits than its factorization.

513761013656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5838193354 (or 5838193350 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 44.

The spelling of 513761013656 in words is "five hundred thirteen billion, seven hundred sixty-one million, thirteen thousand, six hundred fifty-six".