128959168476 has 12 divisors (see below), whose sum is σ = 300904726472. Its totient is φ = 42986389488.

The previous prime is 128959168451. The next prime is 128959168489. The reversal of 128959168476 is 674861959821.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5373298675 + ... + 5373298698.

Almost surely, 2^128959168476 is an apocalyptic number.

It is an amenable number.

128959168476 is an abundant number, since it is smaller than the sum of its proper divisors (171945557996).

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

128959168476 is a wasteful number, since it uses less digits than its factorization.

128959168476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10746597380 (or 10746597378 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 66.

The spelling of 128959168476 in words is "one hundred twenty-eight billion, nine hundred fifty-nine million, one hundred sixty-eight thousand, four hundred seventy-six".