189395928231 has 8 divisors (see below), whose sum is σ = 265818846720. Its totient is φ = 119618480952.

The previous prime is 189395928217. The next prime is 189395928251. The reversal of 189395928231 is 132829593981.

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

It is not a de Polignac number, because 189395928231 - 2¹⁰ = 189395927207 is a prime.

It is a super-2 number, since 2×189395928231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189395928251) 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, 1661367735 + ... + 1661367848.

It is an arithmetic number, because the mean of its divisors is an integer number (33227355840).

Almost surely, 2^189395928231 is an apocalyptic number.

189395928231 is a deficient number, since it is larger than the sum of its proper divisors (76422918489).

189395928231 is a wasteful number, since it uses less digits than its factorization.

189395928231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322735605.

The product of its digits is 8398080, while the sum is 60.

The spelling of 189395928231 in words is "one hundred eighty-nine billion, three hundred ninety-five million, nine hundred twenty-eight thousand, two hundred thirty-one".