189385326199 has 2 divisors, whose sum is σ = 189385326200. Its totient is φ = 189385326198.

The previous prime is 189385326131. The next prime is 189385326211. The reversal of 189385326199 is 991623583981.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 189385326199 - 2²¹ = 189383229047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189385326199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189385323199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94692663099 + 94692663100.

It is an arithmetic number, because the mean of its divisors is an integer number (94692663100).

Almost surely, 2^189385326199 is an apocalyptic number.

189385326199 is a deficient number, since it is larger than the sum of its proper divisors (1).

189385326199 is an equidigital number, since it uses as much as digits as its factorization.

189385326199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25194240, while the sum is 64.

The spelling of 189385326199 in words is "one hundred eighty-nine billion, three hundred eighty-five million, three hundred twenty-six thousand, one hundred ninety-nine".