9899808288 has 144 divisors (see below), whose sum is σ = 27739635840. Its totient is φ = 3090755584.

The previous prime is 9899808283. The next prime is 9899808307. The reversal of 9899808288 is 8828089989.

It is not an unprimeable number, because it can be changed into a prime (9899808283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6630070 + ... + 6631562.

It is an arithmetic number, because the mean of its divisors is an integer number (192636360).

Almost surely, 2^9899808288 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 9899808288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13869817920).

9899808288 is an abundant number, since it is smaller than the sum of its proper divisors (17839827552).

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

9899808288 is a wasteful number, since it uses less digits than its factorization.

9899808288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779 (or 1754 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 69.

The square root of 9899808288 is about 99497.7803169498. The cubic root of 9899808288 is about 2147.2153086736.

The spelling of 9899808288 in words is "nine billion, eight hundred ninety-nine million, eight hundred eight thousand, two hundred eighty-eight".