478576657494 has 96 divisors (see below), whose sum is σ = 1127847206304. Its totient is φ = 145783411200.

The previous prime is 478576657477. The next prime is 478576657501. The reversal of 478576657494 is 494756675874.

478576657494 is a `hidden beast` number, since 4 + 7 + 8 + 5 + 76 + 65 + 7 + 494 = 666.

It is a super-3 number, since 3×478576657494³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45088132 + ... + 45098744.

It is an arithmetic number, because the mean of its divisors is an integer number (11748408399).

Almost surely, 2^478576657494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478576657494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563923603152).

478576657494 is an abundant number, since it is smaller than the sum of its proper divisors (649270548810).

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

478576657494 is a wasteful number, since it uses less digits than its factorization.

478576657494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12542 (or 12539 counting only the distinct ones).

The product of its digits is 1422489600, while the sum is 72.

The spelling of 478576657494 in words is "four hundred seventy-eight billion, five hundred seventy-six million, six hundred fifty-seven thousand, four hundred ninety-four".