9994819198120 has 64 divisors (see below), whose sum is σ = 24223068195840. Its totient is φ = 3700746508800.

The previous prime is 9994819198109. The next prime is 9994819198367. The reversal of 9994819198120 is 218919184999.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 9994819198120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175196221 + ... + 175253260.

It is an arithmetic number, because the mean of its divisors is an integer number (378485440560).

Almost surely, 2^{9994819198120} is an apocalyptic number.

It is an amenable number.

9994819198120 is an abundant number, since it is smaller than the sum of its proper divisors (14228248997720).

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

9994819198120 is a wasteful number, since it uses less digits than its factorization.

9994819198120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350449546 (or 350449542 counting only the distinct ones).

The product of its (nonzero) digits is 30233088, while the sum is 70.

The spelling of 9994819198120 in words is "nine trillion, nine hundred ninety-four billion, eight hundred nineteen million, one hundred ninety-eight thousand, one hundred twenty".