518068818 has 32 divisors (see below), whose sum is σ = 1190966400. Its totient is φ = 166734288.

The previous prime is 518068777. The next prime is 518068841. The reversal of 518068818 is 818860815.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163846 + ... + 166977.

It is an arithmetic number, because the mean of its divisors is an integer number (37217700).

Almost surely, 2^518068818 is an apocalyptic number.

518068818 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

518068818 is an abundant number, since it is smaller than the sum of its proper divisors (672897582).

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

518068818 is a wasteful number, since it uses less digits than its factorization.

518068818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330863 (or 330857 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 45.

The square root of 518068818 is about 22761.1251479359. The cubic root of 518068818 is about 803.1484356447.

The spelling of 518068818 in words is "five hundred eighteen million, sixty-eight thousand, eight hundred eighteen".