478256618124 has 72 divisors (see below), whose sum is σ = 1243595021760. Its totient is φ = 154879737600.

The previous prime is 478256618123. The next prime is 478256618219. The reversal of 478256618124 is 421816652874.

478256618124 is a `hidden beast` number, since 4 + 7 + 8 + 2 + 5 + 6 + 618 + 12 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (478256618123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 325107 + ... + 1030634.

It is an arithmetic number, because the mean of its divisors is an integer number (17272153080).

Almost surely, 2^478256618124 is an apocalyptic number.

It is an amenable number.

478256618124 is an abundant number, since it is smaller than the sum of its proper divisors (765338403636).

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

478256618124 is a wasteful number, since it uses less digits than its factorization.

478256618124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356031 (or 1356026 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The spelling of 478256618124 in words is "four hundred seventy-eight billion, two hundred fifty-six million, six hundred eighteen thousand, one hundred twenty-four".