985789987589 has 48 divisors (see below), whose sum is σ = 1163604019200. Its totient is φ = 827310607200.

The previous prime is 985789987573. The next prime is 985789987591.

985789987589 is nontrivially palindromic in base 10.

985789987589 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 985789987589 - 2⁴ = 985789987573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 985789987498 and 985789987507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985789987289) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68360222 + ... + 68374640.

It is an arithmetic number, because the mean of its divisors is an integer number (24241750400).

Almost surely, 2^985789987589 is an apocalyptic number.

It is an amenable number.

985789987589 is a deficient number, since it is larger than the sum of its proper divisors (177814031611).

985789987589 is a wasteful number, since it uses less digits than its factorization.

985789987589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14886 (or 14863 counting only the distinct ones).

The product of its digits is 32920473600, while the sum is 92.

The spelling of 985789987589 in words is "nine hundred eighty-five billion, seven hundred eighty-nine million, nine hundred eighty-seven thousand, five hundred eighty-nine".