189736013839 has 2 divisors, whose sum is σ = 189736013840. Its totient is φ = 189736013838.

The previous prime is 189736013699. The next prime is 189736013851. The reversal of 189736013839 is 938310637981.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 189736013839 - 2²⁵ = 189702459407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189736013879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94868006919 + 94868006920.

It is an arithmetic number, because the mean of its divisors is an integer number (94868006920).

Almost surely, 2^189736013839 is an apocalyptic number.

189736013839 is a deficient number, since it is larger than the sum of its proper divisors (1).

189736013839 is an equidigital number, since it uses as much as digits as its factorization.

189736013839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5878656, while the sum is 58.

The spelling of 189736013839 in words is "one hundred eighty-nine billion, seven hundred thirty-six million, thirteen thousand, eight hundred thirty-nine".