191920092911 has 2 divisors, whose sum is σ = 191920092912. Its totient is φ = 191920092910.

The previous prime is 191920092851. The next prime is 191920092953. The reversal of 191920092911 is 119290029191.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 191920092911 - 2²² = 191915898607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (191920092211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95960046455 + 95960046456.

It is an arithmetic number, because the mean of its divisors is an integer number (95960046456).

Almost surely, 2^191920092911 is an apocalyptic number.

191920092911 is a deficient number, since it is larger than the sum of its proper divisors (1).

191920092911 is an equidigital number, since it uses as much as digits as its factorization.

191920092911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 44.

The spelling of 191920092911 in words is "one hundred ninety-one billion, nine hundred twenty million, ninety-two thousand, nine hundred eleven".