9894432768 has 208 divisors, whose sum is σ = 29213955072. Its totient is φ = 2953216000.

The previous prime is 9894432733. The next prime is 9894432787. The reversal of 9894432768 is 8672344989.

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, 9596413 + ... + 9597443.

Almost surely, 2^9894432768 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 9894432768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14606977536).

9894432768 is an abundant number, since it is smaller than the sum of its proper divisors (19319522304).

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

9894432768 is a wasteful number, since it uses less digits than its factorization.

9894432768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140 (or 1118 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 60.

The square root of 9894432768 is about 99470.7633830162. The cubic root of 9894432768 is about 2146.8265978261.

The spelling of 9894432768 in words is "nine billion, eight hundred ninety-four million, four hundred thirty-two thousand, seven hundred sixty-eight".