9989133839 has 16 divisors (see below), whose sum is σ = 10395241920. Its totient is φ = 9587316480.

The previous prime is 9989133809. The next prime is 9989133871. The reversal of 9989133839 is 9383319899.

It is a de Polignac number, because none of the positive numbers 2^k-9989133839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9989133809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4097729 + ... + 4100165.

It is an arithmetic number, because the mean of its divisors is an integer number (649702620).

Almost surely, 2^9989133839 is an apocalyptic number.

9989133839 is a deficient number, since it is larger than the sum of its proper divisors (406108081).

9989133839 is a wasteful number, since it uses less digits than its factorization.

9989133839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3250.

The product of its digits is 11337408, while the sum is 62.

The square root of 9989133839 is about 99945.6544277939. The cubic root of 9989133839 is about 2153.6540594081.

The spelling of 9989133839 in words is "nine billion, nine hundred eighty-nine million, one hundred thirty-three thousand, eight hundred thirty-nine".