518673972 has 48 divisors (see below), whose sum is σ = 1245045312. Its totient is φ = 167988480.

The previous prime is 518673971. The next prime is 518674043. The reversal of 518673972 is 279376815.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518673971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56488 + ... + 65024.

It is an arithmetic number, because the mean of its divisors is an integer number (25938444).

Almost surely, 2^518673972 is an apocalyptic number.

It is an amenable number.

518673972 is an abundant number, since it is smaller than the sum of its proper divisors (726371340).

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

518673972 is a wasteful number, since it uses less digits than its factorization.

518673972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8688 (or 8686 counting only the distinct ones).

The product of its digits is 635040, while the sum is 48.

The square root of 518673972 is about 22774.4148552713. The cubic root of 518673972 is about 803.4610320615.

The spelling of 518673972 in words is "five hundred eighteen million, six hundred seventy-three thousand, nine hundred seventy-two".