47168808478418 has 12 divisors (see below), whose sum is σ = 77770060260270. Its totient is φ = 21440367490080.

The previous prime is 47168808478409. The next prime is 47168808478447. The reversal of 47168808478418 is 81487480886174.

It can be written as a sum of positive squares in only one way, i.e., 35860539326689 + 11308269151729 = 5988367^2 + 3362777^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97456215623 + ... + 97456216106.

Almost surely, 2^{47168808478418} is an apocalyptic number.

47168808478418 is a deficient number, since it is larger than the sum of its proper divisors (30601251781852).

47168808478418 is a wasteful number, since it uses less digits than its factorization.

47168808478418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194912431753 (or 194912431742 counting only the distinct ones).

The product of its (nonzero) digits is 616562688, while the sum is 74.

The spelling of 47168808478418 in words is "forty-seven trillion, one hundred sixty-eight billion, eight hundred eight million, four hundred seventy-eight thousand, four hundred eighteen".