91598268583 has 2 divisors, whose sum is σ = 91598268584. Its totient is φ = 91598268582.

The previous prime is 91598268533. The next prime is 91598268631. The reversal of 91598268583 is 38586289519.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91598268583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91598268533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45799134291 + 45799134292.

It is an arithmetic number, because the mean of its divisors is an integer number (45799134292).

Almost surely, 2^91598268583 is an apocalyptic number.

91598268583 is a deficient number, since it is larger than the sum of its proper divisors (1).

91598268583 is an equidigital number, since it uses as much as digits as its factorization.

91598268583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37324800, while the sum is 64.

The spelling of 91598268583 in words is "ninety-one billion, five hundred ninety-eight million, two hundred sixty-eight thousand, five hundred eighty-three".