128692623601 has 8 divisors (see below), whose sum is σ = 137686673600. Its totient is φ = 119920649040.

The previous prime is 128692623589. The next prime is 128692623611. The reversal of 128692623601 is 106326296821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128692623601 - 2⁷ = 128692623473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128692623611) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 55517661 + ... + 55519978.

It is an arithmetic number, because the mean of its divisors is an integer number (17210834200).

Almost surely, 2^128692623601 is an apocalyptic number.

It is an amenable number.

128692623601 is a deficient number, since it is larger than the sum of its proper divisors (8994049999).

128692623601 is a wasteful number, since it uses less digits than its factorization.

128692623601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111037719.

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 128692623601 in words is "one hundred twenty-eight billion, six hundred ninety-two million, six hundred twenty-three thousand, six hundred one".