478644683178 has 16 divisors (see below), whose sum is σ = 957297278880. Its totient is φ = 159546908976.

The previous prime is 478644683159. The next prime is 478644683219. The reversal of 478644683178 is 871386446874.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 707901 + ... + 1207647.

It is an arithmetic number, because the mean of its divisors is an integer number (59831079930).

Almost surely, 2^478644683178 is an apocalyptic number.

478644683178 is an abundant number, since it is smaller than the sum of its proper divisors (478652595702).

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

478644683178 is a wasteful number, since it uses less digits than its factorization.

478644683178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659381.

The product of its digits is 173408256, while the sum is 66.

The spelling of 478644683178 in words is "four hundred seventy-eight billion, six hundred forty-four million, six hundred eighty-three thousand, one hundred seventy-eight".