8784378880 has 88 divisors (see below), whose sum is σ = 21190871520. Its totient is φ = 3493969920.

The previous prime is 8784378847. The next prime is 8784378899. The reversal of 8784378880 is 888734878.

It is a congruent 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, 921981 + ... + 931459.

Almost surely, 2^8784378880 is an apocalyptic number.

8784378880 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 8784378880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10595435760).

8784378880 is an abundant number, since it is smaller than the sum of its proper divisors (12406492640).

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

8784378880 is a wasteful number, since it uses less digits than its factorization.

8784378880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9685 (or 9667 counting only the distinct ones).

The product of its (nonzero) digits is 19267584, while the sum is 61.

The square root of 8784378880 is about 93725.0173646290. The cubic root of 8784378880 is about 2063.3378882986.

The spelling of 8784378880 in words is "eight billion, seven hundred eighty-four million, three hundred seventy-eight thousand, eight hundred eighty".