518465874218 has 16 divisors (see below), whose sum is σ = 781580145600. Its totient is φ = 257939774400.

The previous prime is 518465874181. The next prime is 518465874239. The reversal of 518465874218 is 812478564815.

It is a happy number.

It is a super-2 number, since 2×518465874218² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1556963 + ... + 1860393.

It is an arithmetic number, because the mean of its divisors is an integer number (48848759100).

Almost surely, 2^518465874218 is an apocalyptic number.

518465874218 is a deficient number, since it is larger than the sum of its proper divisors (263114271382).

518465874218 is a wasteful number, since it uses less digits than its factorization.

518465874218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307693.

The product of its digits is 17203200, while the sum is 59.

The spelling of 518465874218 in words is "five hundred eighteen billion, four hundred sixty-five million, eight hundred seventy-four thousand, two hundred eighteen".