9989595088 has 20 divisors (see below), whose sum is σ = 21114371808. Its totient is φ = 4540724960.

The previous prime is 9989595071. The next prime is 9989595103. The reversal of 9989595088 is 8805959899.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28379356 + ... + 28379707.

Almost surely, 2^9989595088 is an apocalyptic number.

It is an amenable number.

9989595088 is an abundant number, since it is smaller than the sum of its proper divisors (11124776720).

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

9989595088 is a wasteful number, since it uses less digits than its factorization.

9989595088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56759082 (or 56759076 counting only the distinct ones).

The product of its (nonzero) digits is 83980800, while the sum is 70.

The square root of 9989595088 is about 99947.9619001808. The cubic root of 9989595088 is about 2153.6872072768.

The spelling of 9989595088 in words is "nine billion, nine hundred eighty-nine million, five hundred ninety-five thousand, eighty-eight".