91122358875 has 64 divisors (see below), whose sum is σ = 163320368640. Its totient is φ = 44969904000.

The previous prime is 91122358867. The next prime is 91122358891. The reversal of 91122358875 is 57885322119.

It is not a de Polignac number, because 91122358875 - 2³ = 91122358867 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 157665 + ... + 455085.

It is an arithmetic number, because the mean of its divisors is an integer number (2551880760).

Almost surely, 2^91122358875 is an apocalyptic number.

91122358875 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

91122358875 is a deficient number, since it is larger than the sum of its proper divisors (72198009765).

91122358875 is a wasteful number, since it uses less digits than its factorization.

91122358875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297501 (or 297491 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 51.

The spelling of 91122358875 in words is "ninety-one billion, one hundred twenty-two million, three hundred fifty-eight thousand, eight hundred seventy-five".