478778566170 has 32 divisors (see below), whose sum is σ = 1188691614720. Its totient is φ = 123271722560.

The previous prime is 478778566169. The next prime is 478778566193. The reversal of 478778566170 is 71665877874.

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, 275159226 + ... + 275160965.

It is an arithmetic number, because the mean of its divisors is an integer number (37146612960).

Almost surely, 2^478778566170 is an apocalyptic number.

478778566170 is an abundant number, since it is smaller than the sum of its proper divisors (709913048550).

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

478778566170 is a wasteful number, since it uses less digits than its factorization.

478778566170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550320230.

The product of its (nonzero) digits is 110638080, while the sum is 66.

The spelling of 478778566170 in words is "four hundred seventy-eight billion, seven hundred seventy-eight million, five hundred sixty-six thousand, one hundred seventy".