128602303899 has 16 divisors (see below), whose sum is σ = 172134302208. Its totient is φ = 85403125152.

The previous prime is 128602303889. The next prime is 128602303901. The reversal of 128602303899 is 998303206821.

It is not a de Polignac number, because 128602303899 - 2²⁰ = 128601255323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128602303889) 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, 898984 + ... + 1032170.

It is an arithmetic number, because the mean of its divisors is an integer number (10758393888).

Almost surely, 2^128602303899 is an apocalyptic number.

128602303899 is a deficient number, since it is larger than the sum of its proper divisors (43531998309).

128602303899 is a wasteful number, since it uses less digits than its factorization.

128602303899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134434.

The product of its (nonzero) digits is 1119744, while the sum is 51.

The spelling of 128602303899 in words is "one hundred twenty-eight billion, six hundred two million, three hundred three thousand, eight hundred ninety-nine".