478622147268 has 12 divisors (see below), whose sum is σ = 1116785010320. Its totient is φ = 159540715752.

The previous prime is 478622147231. The next prime is 478622147287. The reversal of 478622147268 is 862741226874.

It is a tau number, because it is divible by the number of its divisors (12).

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, 19942589458 + ... + 19942589481.

Almost surely, 2^478622147268 is an apocalyptic number.

It is an amenable number.

478622147268 is an abundant number, since it is smaller than the sum of its proper divisors (638162863052).

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

478622147268 is a wasteful number, since it uses less digits than its factorization.

478622147268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39885178946 (or 39885178944 counting only the distinct ones).

The product of its digits is 14450688, while the sum is 57.

The spelling of 478622147268 in words is "four hundred seventy-eight billion, six hundred twenty-two million, one hundred forty-seven thousand, two hundred sixty-eight".