128693079695 has 16 divisors (see below), whose sum is σ = 157820972832. Its totient is φ = 100706686080.

The previous prime is 128693079679. The next prime is 128693079719. The reversal of 128693079695 is 596970396821.

It is not a de Polignac number, because 128693079695 - 2⁴ = 128693079679 is a prime.

It is a super-2 number, since 2×128693079695² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645872 + ... + 821301.

It is an arithmetic number, because the mean of its divisors is an integer number (9863810802).

Almost surely, 2^128693079695 is an apocalyptic number.

128693079695 is a deficient number, since it is larger than the sum of its proper divisors (29127893137).

128693079695 is a wasteful number, since it uses less digits than its factorization.

128693079695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467562.

The product of its (nonzero) digits is 44089920, while the sum is 65.

The spelling of 128693079695 in words is "one hundred twenty-eight billion, six hundred ninety-three million, seventy-nine thousand, six hundred ninety-five".