91923608911 has 2 divisors, whose sum is σ = 91923608912. Its totient is φ = 91923608910.

The previous prime is 91923608879. The next prime is 91923608947. The reversal of 91923608911 is 11980632919.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91923608911 - 2⁵ = 91923608879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91923608981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45961804455 + 45961804456.

It is an arithmetic number, because the mean of its divisors is an integer number (45961804456).

Almost surely, 2^91923608911 is an apocalyptic number.

91923608911 is a deficient number, since it is larger than the sum of its proper divisors (1).

91923608911 is an equidigital number, since it uses as much as digits as its factorization.

91923608911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 49.

The spelling of 91923608911 in words is "ninety-one billion, nine hundred twenty-three million, six hundred eight thousand, nine hundred eleven".