128085638575 has 12 divisors (see below), whose sum is σ = 159624319600. Its totient is φ = 101953589760.

The previous prime is 128085638507. The next prime is 128085638641. The reversal of 128085638575 is 575836580821.

It is not a de Polignac number, because 128085638575 - 2⁹ = 128085638063 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12867954 + ... + 12877903.

Almost surely, 2^128085638575 is an apocalyptic number.

128085638575 is a deficient number, since it is larger than the sum of its proper divisors (31538681025).

128085638575 is a wasteful number, since it uses less digits than its factorization.

128085638575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25746066 (or 25746061 counting only the distinct ones).

The product of its (nonzero) digits is 16128000, while the sum is 58.

The spelling of 128085638575 in words is "one hundred twenty-eight billion, eighty-five million, six hundred thirty-eight thousand, five hundred seventy-five".