91101407232 has 576 divisors, whose sum is σ = 284430182400. Its totient is φ = 25871155200.

The previous prime is 91101407207. The next prime is 91101407237. The reversal of 91101407232 is 23270410119.

It is a self number, because there is not a number n which added to its sum of digits gives 91101407232.

It is not an unprimeable number, because it can be changed into a prime (91101407237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1359722463 + ... + 1359722529.

It is an arithmetic number, because the mean of its divisors is an integer number (493802400).

Almost surely, 2^91101407232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91101407232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142215091200).

91101407232 is an abundant number, since it is smaller than the sum of its proper divisors (193328775168).

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

91101407232 is a wasteful number, since it uses less digits than its factorization.

91101407232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The spelling of 91101407232 in words is "ninety-one billion, one hundred one million, four hundred seven thousand, two hundred thirty-two".