128349833589 has 12 divisors (see below), whose sum is σ = 185899370176. Its totient is φ = 85333402152.

The previous prime is 128349833539. The next prime is 128349833609. The reversal of 128349833589 is 985338943821.

128349833589 is a `hidden beast` number, since 1 + 2 + 8 + 3 + 49 + 8 + 3 + 3 + 589 = 666.

It is not a de Polignac number, because 128349833589 - 2¹³ = 128349825397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128349833509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19425979 + ... + 19432584.

Almost surely, 2^128349833589 is an apocalyptic number.

It is an amenable number.

128349833589 is a deficient number, since it is larger than the sum of its proper divisors (57549536587).

128349833589 is a wasteful number, since it uses less digits than its factorization.

128349833589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38858936 (or 38858933 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 63.

The spelling of 128349833589 in words is "one hundred twenty-eight billion, three hundred forty-nine million, eight hundred thirty-three thousand, five hundred eighty-nine".