513640366013634 has 32 divisors (see below), whose sum is σ = 1049241046487040. Its totient is φ = 167554120133712.

The previous prime is 513640366013629. The next prime is 513640366013683. The reversal of 513640366013634 is 436310663046315.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86780784 + ... + 92510459.

It is an arithmetic number, because the mean of its divisors is an integer number (32788782702720).

Almost surely, 2^{513640366013634} is an apocalyptic number.

513640366013634 is an abundant number, since it is smaller than the sum of its proper divisors (535600680473406).

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

513640366013634 is a wasteful number, since it uses less digits than its factorization.

513640366013634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179301454.

The product of its (nonzero) digits is 8398080, while the sum is 51.

The spelling of 513640366013634 in words is "five hundred thirteen trillion, six hundred forty billion, three hundred sixty-six million, thirteen thousand, six hundred thirty-four".