91230849185 has 24 divisors (see below), whose sum is σ = 127495345536. Its totient is φ = 62487300960.

The previous prime is 91230849167. The next prime is 91230849191. The reversal of 91230849185 is 58194803219.

It is not a de Polignac number, because 91230849185 - 2³⁶ = 22511372449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5480 + ... + 427190.

It is an arithmetic number, because the mean of its divisors is an integer number (5312306064).

Almost surely, 2^91230849185 is an apocalyptic number.

It is an amenable number.

91230849185 is a deficient number, since it is larger than the sum of its proper divisors (36264496351).

91230849185 is a wasteful number, since it uses less digits than its factorization.

91230849185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422613 (or 422606 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 50.

The spelling of 91230849185 in words is "ninety-one billion, two hundred thirty million, eight hundred forty-nine thousand, one hundred eighty-five".