9885555889 has 12 divisors (see below), whose sum is σ = 10996867728. Its totient is φ = 8878584440.

The previous prime is 9885555887. The next prime is 9885555893.

9885555889 is nontrivially palindromic in base 10.

9885555889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9885555889 - 2¹ = 9885555887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9885555887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 482119 + ... + 502204.

It is an arithmetic number, because the mean of its divisors is an integer number (916405644).

Almost surely, 2^9885555889 is an apocalyptic number.

It is an amenable number.

9885555889 is a deficient number, since it is larger than the sum of its proper divisors (1111311839).

9885555889 is a wasteful number, since it uses less digits than its factorization.

9885555889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984428 (or 984417 counting only the distinct ones).

The product of its digits is 207360000, while the sum is 70.

The square root of 9885555889 is about 99426.1328273407. The cubic root of 9885555889 is about 2146.1843908288.

The spelling of 9885555889 in words is "nine billion, eight hundred eighty-five million, five hundred fifty-five thousand, eight hundred eighty-nine".