128590834171 has 4 divisors (see below), whose sum is σ = 128598159312. Its totient is φ = 128583509032.

The previous prime is 128590834153. The next prime is 128590834181. The reversal of 128590834171 is 171438095821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128590834171 - 2⁹ = 128590833659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128590834181) 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 3 ways as a sum of consecutive naturals, for example, 3636175 + ... + 3671368.

It is an arithmetic number, because the mean of its divisors is an integer number (32149539828).

Almost surely, 2^128590834171 is an apocalyptic number.

128590834171 is a deficient number, since it is larger than the sum of its proper divisors (7325141).

128590834171 is an equidigital number, since it uses as much as digits as its factorization.

128590834171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7325140.

The product of its (nonzero) digits is 483840, while the sum is 49.

The spelling of 128590834171 in words is "one hundred twenty-eight billion, five hundred ninety million, eight hundred thirty-four thousand, one hundred seventy-one".