8881612920 has 192 divisors, whose sum is σ = 29472768000. Its totient is φ = 2319093504.

The previous prime is 8881612907. The next prime is 8881612939. The reversal of 8881612920 is 292161888.

It is a happy number.

8881612920 is a `hidden beast` number, since 8 + 8 + 8 + 1 + 612 + 9 + 20 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3610651 + ... + 3613109.

It is an arithmetic number, because the mean of its divisors is an integer number (153504000).

Almost surely, 2^8881612920 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 8881612920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14736384000).

8881612920 is an abundant number, since it is smaller than the sum of its proper divisors (20591155080).

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

8881612920 is a wasteful number, since it uses less digits than its factorization.

8881612920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682 (or 2675 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 8881612920 is about 94242.3096066729. The cubic root of 8881612920 is about 2070.9229798413.

The spelling of 8881612920 in words is "eight billion, eight hundred eighty-one million, six hundred twelve thousand, nine hundred twenty".