189909746104319 has 2 divisors, whose sum is σ = 189909746104320. Its totient is φ = 189909746104318.

The previous prime is 189909746104313. The next prime is 189909746104343. The reversal of 189909746104319 is 913401647909981.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 189909746104319 - 2³⁶ = 189841026627583 is a prime.

It is a super-2 number, since 2×189909746104319² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189909746104313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94954873052159 + 94954873052160.

It is an arithmetic number, because the mean of its divisors is an integer number (94954873052160).

Almost surely, 2^{189909746104319} is an apocalyptic number.

189909746104319 is a deficient number, since it is larger than the sum of its proper divisors (1).

189909746104319 is an equidigital number, since it uses as much as digits as its factorization.

189909746104319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105815808, while the sum is 71.

The spelling of 189909746104319 in words is "one hundred eighty-nine trillion, nine hundred nine billion, seven hundred forty-six million, one hundred four thousand, three hundred nineteen".