192739385189 has 4 divisors (see below), whose sum is σ = 207565491756. Its totient is φ = 177913278624.

The previous prime is 192739385131. The next prime is 192739385191. The reversal of 192739385189 is 981583937291.

It is a happy number.

192739385189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24017250625 + 168722134564 = 154975^2 + 410758^2 .

It is a cyclic number.

It is not a de Polignac number, because 192739385189 - 2⁸ = 192739384933 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 (192739385689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7413053264 + ... + 7413053289.

It is an arithmetic number, because the mean of its divisors is an integer number (51891372939).

Almost surely, 2^192739385189 is an apocalyptic number.

It is an amenable number.

192739385189 is a deficient number, since it is larger than the sum of its proper divisors (14826106567).

192739385189 is a wasteful number, since it uses less digits than its factorization.

192739385189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14826106566.

The product of its digits is 29393280, while the sum is 65.

The spelling of 192739385189 in words is "one hundred ninety-two billion, seven hundred thirty-nine million, three hundred eighty-five thousand, one hundred eighty-nine".