91751666683 has 2 divisors, whose sum is σ = 91751666684. Its totient is φ = 91751666682.

The previous prime is 91751666639. The next prime is 91751666707. The reversal of 91751666683 is 38666615719.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91751666683 - 2³³ = 83161732091 is a prime.

It is not a weakly prime, because it can be changed into another prime (91751666623) 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, 45875833341 + 45875833342.

It is an arithmetic number, because the mean of its divisors is an integer number (45875833342).

Almost surely, 2^91751666683 is an apocalyptic number.

91751666683 is a deficient number, since it is larger than the sum of its proper divisors (1).

91751666683 is an equidigital number, since it uses as much as digits as its factorization.

91751666683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9797760, while the sum is 58.

The spelling of 91751666683 in words is "ninety-one billion, seven hundred fifty-one million, six hundred sixty-six thousand, six hundred eighty-three".