91715373244 has 12 divisors (see below), whose sum is σ = 175092985368. Its totient is φ = 41688806000.

The previous prime is 91715373241. The next prime is 91715373257. The reversal of 91715373244 is 44237351719.

It is a junction number, because it is equal to n+sod(n) for n = 91715373194 and 91715373203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91715373241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1042220107 + ... + 1042220194.

It is an arithmetic number, because the mean of its divisors is an integer number (14591082114).

Almost surely, 2^91715373244 is an apocalyptic number.

It is an amenable number.

91715373244 is a deficient number, since it is larger than the sum of its proper divisors (83377612124).

91715373244 is a wasteful number, since it uses less digits than its factorization.

91715373244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084440316 (or 2084440314 counting only the distinct ones).

The product of its digits is 635040, while the sum is 46.

The spelling of 91715373244 in words is "ninety-one billion, seven hundred fifteen million, three hundred seventy-three thousand, two hundred forty-four".