985577775589 has 8 divisors (see below), whose sum is σ = 1075600588320. Its totient is φ = 895625768400.

The previous prime is 985577775379. The next prime is 985577775617.

985577775589 is nontrivially palindromic in base 10.

985577775589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-985577775589 is a prime.

It is a super-2 number, since 2×985577775589² (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 (985577275589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17672274 + ... + 17727955.

It is an arithmetic number, because the mean of its divisors is an integer number (134450073540).

Almost surely, 2^985577775589 is an apocalyptic number.

It is an amenable number.

985577775589 is a deficient number, since it is larger than the sum of its proper divisors (90022812731).

985577775589 is a wasteful number, since it uses less digits than its factorization.

985577775589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35402771.

The product of its digits is 7779240000, while the sum is 82.

The spelling of 985577775589 in words is "nine hundred eighty-five billion, five hundred seventy-seven million, seven hundred seventy-five thousand, five hundred eighty-nine".