128683229185 has 8 divisors (see below), whose sum is σ = 176479857216. Its totient is φ = 88239928560.

The previous prime is 128683229183. The next prime is 128683229231. The reversal of 128683229185 is 581922386821.

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

It is not a de Polignac number, because 128683229185 - 2¹ = 128683229183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128683229183) 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, 1838331811 + ... + 1838331880.

It is an arithmetic number, because the mean of its divisors is an integer number (22059982152).

Almost surely, 2^128683229185 is an apocalyptic number.

It is an amenable number.

128683229185 is a deficient number, since it is larger than the sum of its proper divisors (47796628031).

128683229185 is an equidigital number, since it uses as much as digits as its factorization.

128683229185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3676663703.

The product of its digits is 3317760, while the sum is 55.

The spelling of 128683229185 in words is "one hundred twenty-eight billion, six hundred eighty-three million, two hundred twenty-nine thousand, one hundred eighty-five".