189719103968239 has 8 divisors (see below), whose sum is σ = 189920495539152. Its totient is φ = 189517742878080.

The previous prime is 189719103968231. The next prime is 189719103968291. The reversal of 189719103968239 is 932869301917981.

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

It is a cyclic number.

It is not a de Polignac number, because 189719103968239 - 2³ = 189719103968231 is a prime.

It is a super-2 number, since 2×189719103968239² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189719103968231) 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, 4845687 + ... + 20072839.

It is an arithmetic number, because the mean of its divisors is an integer number (23740061942394).

Almost surely, 2^{189719103968239} is an apocalyptic number.

189719103968239 is a deficient number, since it is larger than the sum of its proper divisors (201391570913).

189719103968239 is a wasteful number, since it uses less digits than its factorization.

189719103968239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15240377.

The product of its (nonzero) digits is 317447424, while the sum is 76.

The spelling of 189719103968239 in words is "one hundred eighty-nine trillion, seven hundred nineteen billion, one hundred three million, nine hundred sixty-eight thousand, two hundred thirty-nine".