128499113234 has 16 divisors (see below), whose sum is σ = 193968984768. Its totient is φ = 63842938992.

The previous prime is 128499113231. The next prime is 128499113257. The reversal of 128499113234 is 432311994821.

It is not an unprimeable number, because it can be changed into a prime (128499113231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1766144 + ... + 1837460.

It is an arithmetic number, because the mean of its divisors is an integer number (12123061548).

Almost surely, 2^128499113234 is an apocalyptic number.

128499113234 is a deficient number, since it is larger than the sum of its proper divisors (65469871534).

128499113234 is a wasteful number, since it uses less digits than its factorization.

128499113234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77009.

The product of its digits is 373248, while the sum is 47.

The spelling of 128499113234 in words is "one hundred twenty-eight billion, four hundred ninety-nine million, one hundred thirteen thousand, two hundred thirty-four".