9889892885 has 16 divisors (see below), whose sum is σ = 12581049600. Its totient is φ = 7437578496.

The previous prime is 9889892861. The next prime is 9889892927. The reversal of 9889892885 is 5882989889.

It is a cyclic number.

It is not a de Polignac number, because 9889892885 - 2¹⁰ = 9889891861 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1976 + ... + 140654.

It is an arithmetic number, because the mean of its divisors is an integer number (786315600).

Almost surely, 2^9889892885 is an apocalyptic number.

It is an amenable number.

9889892885 is a deficient number, since it is larger than the sum of its proper divisors (2691156715).

9889892885 is a wasteful number, since it uses less digits than its factorization.

9889892885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139540.

The product of its digits is 238878720, while the sum is 74.

The square root of 9889892885 is about 99447.9405769672. The cubic root of 9889892885 is about 2146.4982033026.

The spelling of 9889892885 in words is "nine billion, eight hundred eighty-nine million, eight hundred ninety-two thousand, eight hundred eighty-five".