91132341847 has 12 divisors (see below), whose sum is σ = 97234943400. Its totient is φ = 85393705856.

The previous prime is 91132341821. The next prime is 91132341851. The reversal of 91132341847 is 74814323119.

It is not a de Polignac number, because 91132341847 - 2³¹ = 88984858199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91132341857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 628972 + ... + 760177.

It is an arithmetic number, because the mean of its divisors is an integer number (8102911950).

Almost surely, 2^91132341847 is an apocalyptic number.

91132341847 is a deficient number, since it is larger than the sum of its proper divisors (6102601553).

91132341847 is a wasteful number, since it uses less digits than its factorization.

91132341847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389410 (or 1389393 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The spelling of 91132341847 in words is "ninety-one billion, one hundred thirty-two million, three hundred forty-one thousand, eight hundred forty-seven".