518410800018 has 48 divisors (see below), whose sum is σ = 1124370749112. Its totient is φ = 172627200000.

The previous prime is 518410799969. The next prime is 518410800041. The reversal of 518410800018 is 810008014815.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 451628353089 + 66782446929 = 672033^2 + 258423^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116730678 + ... + 116735118.

Almost surely, 2^518410800018 is an apocalyptic number.

518410800018 is an abundant number, since it is smaller than the sum of its proper divisors (605959949094).

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

518410800018 is a wasteful number, since it uses less digits than its factorization.

518410800018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9611 (or 9608 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 36.

The spelling of 518410800018 in words is "five hundred eighteen billion, four hundred ten million, eight hundred thousand, eighteen".