9855885589 has 4 divisors (see below), whose sum is σ = 10751875200. Its totient is φ = 8959895980.

The previous prime is 9855885581. The next prime is 9855885679.

9855885589 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9855885589 - 2³ = 9855885581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9855885581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447994789 + ... + 447994810.

It is an arithmetic number, because the mean of its divisors is an integer number (2687968800).

Almost surely, 2^9855885589 is an apocalyptic number.

It is an amenable number.

9855885589 is a deficient number, since it is larger than the sum of its proper divisors (895989611).

9855885589 is a wasteful number, since it uses less digits than its factorization.

9855885589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895989610.

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

The square root of 9855885589 is about 99276.8129474350. The cubic root of 9855885589 is about 2144.0350681505.

The spelling of 9855885589 in words is "nine billion, eight hundred fifty-five million, eight hundred eighty-five thousand, five hundred eighty-nine".