9894120192 has 432 divisors, whose sum is σ = 34016411520. Its totient is φ = 2836684800.

The previous prime is 9894120169. The next prime is 9894120221. The reversal of 9894120192 is 2910214989.

It is a tau number, because it is divible by the number of its divisors (432).

It is a super-2 number, since 2×9894120192² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13001092 + ... + 13001852.

Almost surely, 2^9894120192 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 9894120192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17008205760).

9894120192 is an abundant number, since it is smaller than the sum of its proper divisors (24122291328).

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

9894120192 is a wasteful number, since it uses less digits than its factorization.

9894120192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822 (or 796 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 9894120192 is about 99469.1921752660. The cubic root of 9894120192 is about 2146.8039907178.

The spelling of 9894120192 in words is "nine billion, eight hundred ninety-four million, one hundred twenty thousand, one hundred ninety-two".