91364877322031 has 2 divisors, whose sum is σ = 91364877322032. Its totient is φ = 91364877322030.

The previous prime is 91364877322003. The next prime is 91364877322049. The reversal of 91364877322031 is 13022377846319.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91364877322031 - 2²⁶ = 91364810213167 is a prime.

It is a super-2 number, since 2×91364877322031² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91364877022031) 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, 45682438661015 + 45682438661016.

It is an arithmetic number, because the mean of its divisors is an integer number (45682438661016).

Almost surely, 2^{91364877322031} is an apocalyptic number.

91364877322031 is a deficient number, since it is larger than the sum of its proper divisors (1).

91364877322031 is an equidigital number, since it uses as much as digits as its factorization.

91364877322031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9144576, while the sum is 56.

The spelling of 91364877322031 in words is "ninety-one trillion, three hundred sixty-four billion, eight hundred seventy-seven million, three hundred twenty-two thousand, thirty-one".