9394181029920 has 192 divisors, whose sum is σ = 29666336071680. Its totient is φ = 2498798066688.

The previous prime is 9394181029859. The next prime is 9394181029931. The reversal of 9394181029920 is 299201814939.

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 31 ways as a sum of consecutive naturals, for example, 801613821 + ... + 801625539.

It is an arithmetic number, because the mean of its divisors is an integer number (154512167040).

Almost surely, 2^{9394181029920} 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 9394181029920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14833168035840).

9394181029920 is an abundant number, since it is smaller than the sum of its proper divisors (20272155041760).

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

9394181029920 is a wasteful number, since it uses less digits than its factorization.

9394181029920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15807 (or 15799 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 57.

The spelling of 9394181029920 in words is "nine trillion, three hundred ninety-four billion, one hundred eighty-one million, twenty-nine thousand, nine hundred twenty".