9889913736 has 48 divisors (see below), whose sum is σ = 26789908860. Its totient is φ = 3296056320.

The previous prime is 9889913731. The next prime is 9889913749. The reversal of 9889913736 is 6373199889.

It can be written as a sum of positive squares in 2 ways, for example, as 5995404900 + 3894508836 = 77430^2 + 62406^2 .

It is not an unprimeable number, because it can be changed into a prime (9889913731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 643356 + ... + 658548.

Almost surely, 2^9889913736 is an apocalyptic number.

It is an amenable number.

9889913736 is an abundant number, since it is smaller than the sum of its proper divisors (16899995124).

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

9889913736 is a wasteful number, since it uses less digits than its factorization.

9889913736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24246 (or 24239 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 63.

The square root of 9889913736 is about 99448.0454106565. The cubic root of 9889913736 is about 2146.4997117990.

The spelling of 9889913736 in words is "nine billion, eight hundred eighty-nine million, nine hundred thirteen thousand, seven hundred thirty-six".