985448844589 has 16 divisors (see below), whose sum is σ = 1113566927040. Its totient is φ = 863833936000.

The previous prime is 985448844563. The next prime is 985448844607.

985448844589 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 985448844589 - 2⁵ = 985448844557 is a prime.

It is a super-2 number, since 2×985448844589² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985448844889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1786927 + ... + 2272444.

It is an arithmetic number, because the mean of its divisors is an integer number (69597932940).

Almost surely, 2^985448844589 is an apocalyptic number.

It is an amenable number.

985448844589 is a deficient number, since it is larger than the sum of its proper divisors (128118082451).

985448844589 is a wasteful number, since it uses less digits than its factorization.

985448844589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4060172.

The product of its digits is 2123366400, while the sum is 76.

The spelling of 985448844589 in words is "nine hundred eighty-five billion, four hundred forty-eight million, eight hundred forty-four thousand, five hundred eighty-nine".