91248802915 has 8 divisors (see below), whose sum is σ = 111293622288. Its totient is φ = 71802336480.

The previous prime is 91248802859. The next prime is 91248802933. The reversal of 91248802915 is 51920884219.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91248802915 - 2²⁵ = 91215248483 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149587897 + ... + 149588506.

It is an arithmetic number, because the mean of its divisors is an integer number (13911702786).

Almost surely, 2^91248802915 is an apocalyptic number.

91248802915 is a deficient number, since it is larger than the sum of its proper divisors (20044819373).

91248802915 is a wasteful number, since it uses less digits than its factorization.

91248802915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299176469.

The product of its (nonzero) digits is 414720, while the sum is 49.

The spelling of 91248802915 in words is "ninety-one billion, two hundred forty-eight million, eight hundred two thousand, nine hundred fifteen".