518008018 has 24 divisors (see below), whose sum is σ = 859077324. Its totient is φ = 234078240.

The previous prime is 518008013. The next prime is 518008019. The reversal of 518008018 is 810800815.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 487393929 + 30614089 = 22077^2 + 5533^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (518008013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35680 + ... + 48052.

Almost surely, 2^518008018 is an apocalyptic number.

518008018 is a deficient number, since it is larger than the sum of its proper divisors (341069306).

518008018 is a wasteful number, since it uses less digits than its factorization.

518008018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12570 (or 12559 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 31.

The square root of 518008018 is about 22759.7894981478. The cubic root of 518008018 is about 803.1170155363.

The spelling of 518008018 in words is "five hundred eighteen million, eight thousand, eighteen".