91495689639763 has 2 divisors, whose sum is σ = 91495689639764. Its totient is φ = 91495689639762.

The previous prime is 91495689639667. The next prime is 91495689639797. The reversal of 91495689639763 is 36793698659419.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91495689639763 is a prime.

It is a super-2 number, since 2×91495689639763² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (91495689631763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45747844819881 + 45747844819882.

It is an arithmetic number, because the mean of its divisors is an integer number (45747844819882).

Almost surely, 2^{91495689639763} is an apocalyptic number.

91495689639763 is a deficient number, since it is larger than the sum of its proper divisors (1).

91495689639763 is an equidigital number, since it uses as much as digits as its factorization.

91495689639763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14285134080, while the sum is 85.

The spelling of 91495689639763 in words is "ninety-one trillion, four hundred ninety-five billion, six hundred eighty-nine million, six hundred thirty-nine thousand, seven hundred sixty-three".