9992343680 has 128 divisors (see below), whose sum is σ = 26113060800. Its totient is φ = 3626127360.

The previous prime is 9992343661. The next prime is 9992343709. The reversal of 9992343680 is 863432999.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

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, 4356614 + ... + 4358906.

Almost surely, 2^9992343680 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 9992343680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13056530400).

9992343680 is an abundant number, since it is smaller than the sum of its proper divisors (16120717120).

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

9992343680 is a wasteful number, since it uses less digits than its factorization.

9992343680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942 (or 2930 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 53.

The square root of 9992343680 is about 99961.7110697891. The cubic root of 9992343680 is about 2153.8847149349.

The spelling of 9992343680 in words is "nine billion, nine hundred ninety-two million, three hundred forty-three thousand, six hundred eighty".