477981146368 has 54 divisors (see below), whose sum is σ = 1048716256322. Its totient is φ = 217264143360.

The previous prime is 477981146327. The next prime is 477981146369. The reversal of 477981146368 is 863641189774.

It can be written as a sum of positive squares in only one way, i.e., 313833003264 + 164148143104 = 560208^2 + 405152^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (477981146369) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7684371 + ... + 7746322.

Almost surely, 2^477981146368 is an apocalyptic number.

It is an amenable number.

477981146368 is an abundant number, since it is smaller than the sum of its proper divisors (570735109954).

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

477981146368 is a wasteful number, since it uses less digits than its factorization.

477981146368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15430731 (or 15430706 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 64.

The spelling of 477981146368 in words is "four hundred seventy-seven billion, nine hundred eighty-one million, one hundred forty-six thousand, three hundred sixty-eight".