91465323377 has 2 divisors, whose sum is σ = 91465323378. Its totient is φ = 91465323376.

The previous prime is 91465323247. The next prime is 91465323403. The reversal of 91465323377 is 77332356419.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88809364081 + 2655959296 = 298009^2 + 51536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91465323377 is a prime.

It is not a weakly prime, because it can be changed into another prime (91465320377) 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, 45732661688 + 45732661689.

It is an arithmetic number, because the mean of its divisors is an integer number (45732661689).

Almost surely, 2^91465323377 is an apocalyptic number.

It is an amenable number.

91465323377 is a deficient number, since it is larger than the sum of its proper divisors (1).

91465323377 is an equidigital number, since it uses as much as digits as its factorization.

91465323377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2857680, while the sum is 50.

The spelling of 91465323377 in words is "ninety-one billion, four hundred sixty-five million, three hundred twenty-three thousand, three hundred seventy-seven".