518973278404 has 45 divisors (see below), whose sum is σ = 1059651550671. Its totient is φ = 222386862600.

The previous prime is 518973278347. The next prime is 518973278441. The reversal of 518973278404 is 404872379815.

The square root of 518973278404 is 720398.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 70595329 + ... + 70602679.

Almost surely, 2^518973278404 is an apocalyptic number.

518973278404 is the 720398-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 518973278404

518973278404 is an abundant number, since it is smaller than the sum of its proper divisors (540678272267).

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

518973278404 is an frugal number, since it uses more digits than its factorization.

518973278404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14734 (or 7360 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 58.

The spelling of 518973278404 in words is "five hundred eighteen billion, nine hundred seventy-three million, two hundred seventy-eight thousand, four hundred four".