9989450792 has 16 divisors (see below), whose sum is σ = 19716021600. Its totient is φ = 4731845040.

The previous prime is 9989450789. The next prime is 9989450797. The reversal of 9989450792 is 2970549899.

It is not an unprimeable number, because it can be changed into a prime (9989450797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32859884 + ... + 32860187.

It is an arithmetic number, because the mean of its divisors is an integer number (1232251350).

Almost surely, 2^9989450792 is an apocalyptic number.

It is an amenable number.

9989450792 is a deficient number, since it is larger than the sum of its proper divisors (9726570808).

9989450792 is a wasteful number, since it uses less digits than its factorization.

9989450792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65720096 (or 65720092 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 62.

The square root of 9989450792 is about 99947.2400419341. The cubic root of 9989450792 is about 2153.6768374890.

The spelling of 9989450792 in words is "nine billion, nine hundred eighty-nine million, four hundred fifty thousand, seven hundred ninety-two".