189813195359 has 2 divisors, whose sum is σ = 189813195360. Its totient is φ = 189813195358.

The previous prime is 189813195337. The next prime is 189813195361. The reversal of 189813195359 is 953591318981.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189813195359 is a prime.

Together with 189813195361, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189813105359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94906597679 + 94906597680.

It is an arithmetic number, because the mean of its divisors is an integer number (94906597680).

Almost surely, 2^189813195359 is an apocalyptic number.

189813195359 is a deficient number, since it is larger than the sum of its proper divisors (1).

189813195359 is an equidigital number, since it uses as much as digits as its factorization.

189813195359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10497600, while the sum is 62.

The spelling of 189813195359 in words is "one hundred eighty-nine billion, eight hundred thirteen million, one hundred ninety-five thousand, three hundred fifty-nine".