8821542912 has 520 divisors, whose sum is σ = 30835379904. Its totient is φ = 2225405952.

The previous prime is 8821542911. The next prime is 8821542929. The reversal of 8821542912 is 2192451288.

It is a Harshad number since it is a multiple of its sum of digits (42).

Its product of digits (92160) is a multiple of the sum of its prime divisors (48).

It is not an unprimeable number, because it can be changed into a prime (8821542911) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 383545333 + ... + 383545355.

Almost surely, 2^8821542912 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 8821542912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15417689952).

8821542912 is an abundant number, since it is smaller than the sum of its proper divisors (22013836992).

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

8821542912 is an equidigital number, since it uses as much as digits as its factorization.

8821542912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 48 counting only the distinct ones).

The product of its digits is 92160, while the sum is 42.

The square root of 8821542912 is about 93923.0691151008. The cubic root of 8821542912 is about 2066.2435792026.

The spelling of 8821542912 in words is "eight billion, eight hundred twenty-one million, five hundred forty-two thousand, nine hundred twelve".