128477460476 has 24 divisors (see below), whose sum is σ = 239911057680. Its totient is φ = 60024074112.

The previous prime is 128477460437. The next prime is 128477460491. The reversal of 128477460476 is 674064774821.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11573171 + ... + 11584266.

It is an arithmetic number, because the mean of its divisors is an integer number (9996294070).

Almost surely, 2^128477460476 is an apocalyptic number.

It is an amenable number.

128477460476 is a deficient number, since it is larger than the sum of its proper divisors (111433597204).

128477460476 is a wasteful number, since it uses less digits than its factorization.

128477460476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23157533 (or 23157531 counting only the distinct ones).

The product of its (nonzero) digits is 12644352, while the sum is 56.

The spelling of 128477460476 in words is "one hundred twenty-eight billion, four hundred seventy-seven million, four hundred sixty thousand, four hundred seventy-six".