91926323969 has 2 divisors, whose sum is σ = 91926323970. Its totient is φ = 91926323968.

The previous prime is 91926323927. The next prime is 91926324013. The reversal of 91926323969 is 96932362919.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60211344400 + 31714979569 = 245380^2 + 178087^2 .

It is a cyclic number.

It is not a de Polignac number, because 91926323969 - 2²⁴ = 91909546753 is a prime.

It is a super-2 number, since 2×91926323969² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (91926325969) 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, 45963161984 + 45963161985.

It is an arithmetic number, because the mean of its divisors is an integer number (45963161985).

Almost surely, 2^91926323969 is an apocalyptic number.

It is an amenable number.

91926323969 is a deficient number, since it is larger than the sum of its proper divisors (1).

91926323969 is an equidigital number, since it uses as much as digits as its factorization.

91926323969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8503056, while the sum is 59.

The spelling of 91926323969 in words is "ninety-one billion, nine hundred twenty-six million, three hundred twenty-three thousand, nine hundred sixty-nine".