189196082839 has 4 divisors (see below), whose sum is σ = 189251617824. Its totient is φ = 189140547856.

The previous prime is 189196082813. The next prime is 189196082917. The reversal of 189196082839 is 938280691981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 938280691981 = 15649 ⋅59957869.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189196082839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189196082039) 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, 27762382 + ... + 27769195.

It is an arithmetic number, because the mean of its divisors is an integer number (47312904456).

Almost surely, 2^189196082839 is an apocalyptic number.

189196082839 is a deficient number, since it is larger than the sum of its proper divisors (55534985).

189196082839 is an equidigital number, since it uses as much as digits as its factorization.

189196082839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55534984.

The product of its (nonzero) digits is 13436928, while the sum is 64.

The spelling of 189196082839 in words is "one hundred eighty-nine billion, one hundred ninety-six million, eighty-two thousand, eight hundred thirty-nine".