189798343695 has 32 divisors (see below), whose sum is σ = 345649026240. Its totient is φ = 98756858880.

The previous prime is 189798343607. The next prime is 189798343697. The reversal of 189798343695 is 596343897981.

189798343695 is a `hidden beast` number, since 18 + 9 + 7 + 98 + 3 + 436 + 95 = 666.

It is not a de Polignac number, because 189798343695 - 2¹⁴ = 189798327311 is a prime.

It is a super-2 number, since 2×189798343695² (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 (189798343697) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17139754 + ... + 17150823.

It is an arithmetic number, because the mean of its divisors is an integer number (10801532070).

Almost surely, 2^189798343695 is an apocalyptic number.

189798343695 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

189798343695 is a deficient number, since it is larger than the sum of its proper divisors (155850682545).

189798343695 is a wasteful number, since it uses less digits than its factorization.

189798343695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34290632 (or 34290626 counting only the distinct ones).

The product of its digits is 352719360, while the sum is 72.

The spelling of 189798343695 in words is "one hundred eighty-nine billion, seven hundred ninety-eight million, three hundred forty-three thousand, six hundred ninety-five".