18476312568 has 64 divisors (see below), whose sum is σ = 53169312000. Its totient is φ = 5240961792.

The previous prime is 18476312539. The next prime is 18476312587. The reversal of 18476312568 is 86521367481.

It is a super-2 number, since 2×18476312568² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18476312568.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372253 + ... + 418956.

It is an arithmetic number, because the mean of its divisors is an integer number (830770500).

Almost surely, 2^18476312568 is an apocalyptic number.

It is an amenable number.

18476312568 is an abundant number, since it is smaller than the sum of its proper divisors (34692999432).

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

18476312568 is a wasteful number, since it uses less digits than its factorization.

18476312568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791364 (or 791360 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 51.

The spelling of 18476312568 in words is "eighteen billion, four hundred seventy-six million, three hundred twelve thousand, five hundred sixty-eight".