128312324898 has 8 divisors (see below), whose sum is σ = 256624649808. Its totient is φ = 42770774964.

The previous prime is 128312324893. The next prime is 128312324927. The reversal of 128312324898 is 898423213821.

It is a sphenic number, since it is the product of 3 distinct primes.

128312324898 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 128312324898.

It is not an unprimeable number, because it can be changed into a prime (128312324893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10692693736 + ... + 10692693747.

It is an arithmetic number, because the mean of its divisors is an integer number (32078081226).

Almost surely, 2^128312324898 is an apocalyptic number.

128312324898 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128312324898 is a wasteful number, since it uses less digits than its factorization.

128312324898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21385387488.

The product of its digits is 1327104, while the sum is 51.

The spelling of 128312324898 in words is "one hundred twenty-eight billion, three hundred twelve million, three hundred twenty-four thousand, eight hundred ninety-eight".