91005000496 has 80 divisors (see below), whose sum is σ = 190021766400. Its totient is φ = 42110095104.

The previous prime is 91005000479. The next prime is 91005000497. The reversal of 91005000496 is 69400050019.

It is not an unprimeable number, because it can be changed into a prime (91005000497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2418595 + ... + 2455933.

It is an arithmetic number, because the mean of its divisors is an integer number (2375272080).

Almost surely, 2^91005000496 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 91005000496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95010883200).

91005000496 is an abundant number, since it is smaller than the sum of its proper divisors (99016765904).

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

91005000496 is a wasteful number, since it uses less digits than its factorization.

91005000496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37586 (or 37580 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The spelling of 91005000496 in words is "ninety-one billion, five million, four hundred ninety-six", and thus it is an aban number.