128929346135 has 16 divisors (see below), whose sum is σ = 161494672320. Its totient is φ = 98626767360.

The previous prime is 128929346123. The next prime is 128929346137. The reversal of 128929346135 is 531643929821.

It is a happy number.

It is not a de Polignac number, because 128929346135 - 2²⁰ = 128928297559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128929346137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173765 + ... + 536705.

It is an arithmetic number, because the mean of its divisors is an integer number (10093417020).

Almost surely, 2^128929346135 is an apocalyptic number.

128929346135 is a deficient number, since it is larger than the sum of its proper divisors (32565326185).

128929346135 is a wasteful number, since it uses less digits than its factorization.

128929346135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366058.

The product of its digits is 2799360, while the sum is 53.

The spelling of 128929346135 in words is "one hundred twenty-eight billion, nine hundred twenty-nine million, three hundred forty-six thousand, one hundred thirty-five".