8791109415 has 112 divisors (see below), whose sum is σ = 17659382400. Its totient is φ = 4162415040.

The previous prime is 8791109401. The next prime is 8791109419. The reversal of 8791109415 is 5149011978.

It is a happy number.

It is not a de Polignac number, because 8791109415 - 2⁷ = 8791109287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8791109419) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 1721536 + ... + 1726634.

Almost surely, 2^8791109415 is an apocalyptic number.

8791109415 is an abundant number, since it is smaller than the sum of its proper divisors (8868272985).

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

8791109415 is a wasteful number, since it uses less digits than its factorization.

8791109415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5176 (or 5161 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 45.

The square root of 8791109415 is about 93760.9162444566. The cubic root of 8791109415 is about 2063.8647258727.

The spelling of 8791109415 in words is "eight billion, seven hundred ninety-one million, one hundred nine thousand, four hundred fifteen".