477649878868656 has 120 divisors (see below), whose sum is σ = 1439726719769520. Its totient is φ = 146954588594688.

The previous prime is 477649878868651. The next prime is 477649878868753. The reversal of 477649878868656 is 656868878946774.

477649878868656 is a `hidden beast` number, since 47 + 7 + 6 + 498 + 7 + 8 + 8 + 6 + 8 + 65 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (477649878868651) 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, 6172590 + ... + 31518258.

It is an arithmetic number, because the mean of its divisors is an integer number (11997722664746).

Almost surely, 2^{477649878868656} is an apocalyptic number.

It is an amenable number.

477649878868656 is an abundant number, since it is smaller than the sum of its proper divisors (962076840900864).

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

477649878868656 is a wasteful number, since it uses less digits than its factorization.

477649878868656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25355763 (or 25355754 counting only the distinct ones).

The product of its digits is 1310966415360, while the sum is 99.

The spelling of 477649878868656 in words is "four hundred seventy-seven trillion, six hundred forty-nine billion, eight hundred seventy-eight million, eight hundred sixty-eight thousand, six hundred fifty-six".