518931079494 has 16 divisors (see below), whose sum is σ = 1047046781232. Its totient is φ = 171446256128.

The previous prime is 518931079493. The next prime is 518931079549. The reversal of 518931079494 is 494970139815.

518931079494 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518931079493) 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, 382691859 + ... + 382693214.

It is an arithmetic number, because the mean of its divisors is an integer number (65440423827).

Almost surely, 2^518931079494 is an apocalyptic number.

518931079494 is an abundant number, since it is smaller than the sum of its proper divisors (528115701738).

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

518931079494 is a wasteful number, since it uses less digits than its factorization.

518931079494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765385191.

The product of its (nonzero) digits is 9797760, while the sum is 60.

The spelling of 518931079494 in words is "five hundred eighteen billion, nine hundred thirty-one million, seventy-nine thousand, four hundred ninety-four".