9959821194 has 16 divisors (see below), whose sum is σ = 20171790720. Its totient is φ = 3277915680.

The previous prime is 9959821181. The next prime is 9959821217. The reversal of 9959821194 is 4911289599.

9959821194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10505667 + ... + 10506614.

It is an arithmetic number, because the mean of its divisors is an integer number (1260736920).

Almost surely, 2^9959821194 is an apocalyptic number.

9959821194 is an abundant number, since it is smaller than the sum of its proper divisors (10211969526).

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

9959821194 is a wasteful number, since it uses less digits than its factorization.

9959821194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21012365.

The product of its digits is 2099520, while the sum is 57.

The square root of 9959821194 is about 99798.9037715345. The cubic root of 9959821194 is about 2151.5453965094.

The spelling of 9959821194 in words is "nine billion, nine hundred fifty-nine million, eight hundred twenty-one thousand, one hundred ninety-four".