518568464 has 20 divisors (see below), whose sum is σ = 1021757520. Its totient is φ = 254889120.

The previous prime is 518568461. The next prime is 518568473. The reversal of 518568464 is 464865815.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (518568461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273722 + ... + 275609.

It is an arithmetic number, because the mean of its divisors is an integer number (51087876).

Almost surely, 2^518568464 is an apocalyptic number.

It is an amenable number.

518568464 is a deficient number, since it is larger than the sum of its proper divisors (503189056).

518568464 is a wasteful number, since it uses less digits than its factorization.

518568464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549398 (or 549392 counting only the distinct ones).

The product of its digits is 921600, while the sum is 47.

The square root of 518568464 is about 22772.0983662024. The cubic root of 518568464 is about 803.4065486932.

The spelling of 518568464 in words is "five hundred eighteen million, five hundred sixty-eight thousand, four hundred sixty-four".