478540815731904 has 28 divisors (see below), whose sum is σ = 1266139241624504. Its totient is φ = 159513605243904.

The previous prime is 478540815731837. The next prime is 478540815731917. The reversal of 478540815731904 is 409137518045874.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1246200040777 + ... + 1246200041160.

Almost surely, 2^{478540815731904} is an apocalyptic number.

It is an amenable number.

478540815731904 is an abundant number, since it is smaller than the sum of its proper divisors (787598425892600).

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

478540815731904 is a wasteful number, since it uses less digits than its factorization.

478540815731904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492400081952 (or 2492400081942 counting only the distinct ones).

The product of its (nonzero) digits is 135475200, while the sum is 66.

The spelling of 478540815731904 in words is "four hundred seventy-eight trillion, five hundred forty billion, eight hundred fifteen million, seven hundred thirty-one thousand, nine hundred four".