91886897023 has 2 divisors, whose sum is σ = 91886897024. Its totient is φ = 91886897022.

The previous prime is 91886896991. The next prime is 91886897027. The reversal of 91886897023 is 32079868819.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91886897023 - 2⁵ = 91886896991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91886897027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45943448511 + 45943448512.

It is an arithmetic number, because the mean of its divisors is an integer number (45943448512).

Almost surely, 2^91886897023 is an apocalyptic number.

91886897023 is a deficient number, since it is larger than the sum of its proper divisors (1).

91886897023 is an equidigital number, since it uses as much as digits as its factorization.

91886897023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10450944, while the sum is 61.

The spelling of 91886897023 in words is "ninety-one billion, eight hundred eighty-six million, eight hundred ninety-seven thousand, twenty-three".