91544328106 has 48 divisors (see below), whose sum is σ = 174330319392. Its totient is φ = 35651599200.

The previous prime is 91544328091. The next prime is 91544328119. The reversal of 91544328106 is 60182344519.

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, 2739841 + ... + 2773051.

It is an arithmetic number, because the mean of its divisors is an integer number (3631881654).

Almost surely, 2^91544328106 is an apocalyptic number.

91544328106 is a deficient number, since it is larger than the sum of its proper divisors (82785991286).

91544328106 is a wasteful number, since it uses less digits than its factorization.

91544328106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35795 (or 35788 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 91544328106 in words is "ninety-one billion, five hundred forty-four million, three hundred twenty-eight thousand, one hundred six".