8791504880 has 80 divisors (see below), whose sum is σ = 21019383840. Its totient is φ = 3417209856.

The previous prime is 8791504859. The next prime is 8791504901. The reversal of 8791504880 is 884051978.

It is an interprime number because it is at equal distance from previous prime (8791504859) and next prime (8791504901).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3304991 + ... + 3307649.

It is an arithmetic number, because the mean of its divisors is an integer number (262742298).

Almost surely, 2^8791504880 is an apocalyptic number.

8791504880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8791504880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10509691920).

8791504880 is an abundant number, since it is smaller than the sum of its proper divisors (12227878960).

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

8791504880 is a wasteful number, since it uses less digits than its factorization.

8791504880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3826 (or 3820 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 50.

The square root of 8791504880 is about 93763.0251218464. The cubic root of 8791504880 is about 2063.8956728210.

The spelling of 8791504880 in words is "eight billion, seven hundred ninety-one million, five hundred four thousand, eight hundred eighty".