91389186696 has 16 divisors (see below), whose sum is σ = 228472966800. Its totient is φ = 30463062224.

The previous prime is 91389186661. The next prime is 91389186739. The reversal of 91389186696 is 69668198319.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1903941366 + ... + 1903941413.

It is an arithmetic number, because the mean of its divisors is an integer number (14279560425).

Almost surely, 2^91389186696 is an apocalyptic number.

It is an amenable number.

91389186696 is an abundant number, since it is smaller than the sum of its proper divisors (137083780104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91389186696 is a wasteful number, since it uses less digits than its factorization.

91389186696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807882788 (or 3807882784 counting only the distinct ones).

The product of its digits is 30233088, while the sum is 66.

The spelling of 91389186696 in words is "ninety-one billion, three hundred eighty-nine million, one hundred eighty-six thousand, six hundred ninety-six".