9799839912 has 32 divisors (see below), whose sum is σ = 25789053600. Its totient is φ = 3094686144.

The previous prime is 9799839901. The next prime is 9799839947. The reversal of 9799839912 is 2199389979.

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 7 ways as a sum of consecutive naturals, for example, 10744983 + ... + 10745894.

It is an arithmetic number, because the mean of its divisors is an integer number (805907925).

Almost surely, 2^9799839912 is an apocalyptic number.

It is an amenable number.

9799839912 is an abundant number, since it is smaller than the sum of its proper divisors (15989213688).

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

9799839912 is a wasteful number, since it uses less digits than its factorization.

9799839912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21490905 (or 21490901 counting only the distinct ones).

The product of its digits is 19840464, while the sum is 66.

The square root of 9799839912 is about 98994.1407963118. The cubic root of 9799839912 is about 2139.9633085391.

The spelling of 9799839912 in words is "nine billion, seven hundred ninety-nine million, eight hundred thirty-nine thousand, nine hundred twelve".