128464398404 has 24 divisors (see below), whose sum is σ = 228290465088. Its totient is φ = 63241022880.

The previous prime is 128464398277. The next prime is 128464398409. The reversal of 128464398404 is 404893464821.

It is not an unprimeable number, because it can be changed into a prime (128464398409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100382 + ... + 516725.

It is an arithmetic number, because the mean of its divisors is an integer number (9512102712).

Almost surely, 2^128464398404 is an apocalyptic number.

It is an amenable number.

128464398404 is a deficient number, since it is larger than the sum of its proper divisors (99826066684).

128464398404 is a wasteful number, since it uses less digits than its factorization.

128464398404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617915 (or 617913 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 53.

The spelling of 128464398404 in words is "one hundred twenty-eight billion, four hundred sixty-four million, three hundred ninety-eight thousand, four hundred four".