8831099920 has 20 divisors (see below), whose sum is σ = 20532307500. Its totient is φ = 3532439936.

The previous prime is 8831099917. The next prime is 8831099929. The reversal of 8831099920 is 299901388.

It can be written as a sum of positive squares in 2 ways, for example, as 2413167376 + 6417932544 = 49124^2 + 80112^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (8831099929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55194295 + ... + 55194454.

It is an arithmetic number, because the mean of its divisors is an integer number (1026615375).

Almost surely, 2^8831099920 is an apocalyptic number.

8831099920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8831099920 is an abundant number, since it is smaller than the sum of its proper divisors (11701207580).

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

8831099920 is a wasteful number, since it uses less digits than its factorization.

8831099920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110388762 (or 110388756 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 49.

The square root of 8831099920 is about 93973.9321301392. The cubic root of 8831099920 is about 2066.9894796931.

The spelling of 8831099920 in words is "eight billion, eight hundred thirty-one million, ninety-nine thousand, nine hundred twenty".