128704564401 has 16 divisors (see below), whose sum is σ = 196314877824. Its totient is φ = 73472851584.

The previous prime is 128704564381. The next prime is 128704564403. The reversal of 128704564401 is 104465407821.

It is not a de Polignac number, because 128704564401 - 2⁵ = 128704564369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128704564403) 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 15 ways as a sum of consecutive naturals, for example, 3003796 + ... + 3046341.

It is an arithmetic number, because the mean of its divisors is an integer number (12269679864).

Almost surely, 2^128704564401 is an apocalyptic number.

It is an amenable number.

128704564401 is a deficient number, since it is larger than the sum of its proper divisors (67610313423).

128704564401 is a wasteful number, since it uses less digits than its factorization.

128704564401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6051160.

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 128704564401 in words is "one hundred twenty-eight billion, seven hundred four million, five hundred sixty-four thousand, four hundred one".