9899119989 has 36 divisors (see below), whose sum is σ = 15872572716. Its totient is φ = 5940000000.

The previous prime is 9899119943. The next prime is 9899120027.

9899119989 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 9794467089 + 104652900 = 98967^2 + 10230^2 .

It is not a de Polignac number, because 9899119989 - 2²⁷ = 9764902261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9899119939) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 64989 + ... + 154989.

Almost surely, 2^9899119989 is an apocalyptic number.

9899119989 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

9899119989 is a deficient number, since it is larger than the sum of its proper divisors (5973452727).

9899119989 is a wasteful number, since it uses less digits than its factorization.

9899119989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90130 (or 90116 counting only the distinct ones).

The product of its digits is 34012224, while the sum is 72.

The square root of 9899119989 is about 99494.3213907206. The cubic root of 9899119989 is about 2147.1655447334.

The spelling of 9899119989 in words is "nine billion, eight hundred ninety-nine million, one hundred nineteen thousand, nine hundred eighty-nine".