985527725589 has 12 divisors (see below), whose sum is σ = 1552952779872. Its totient is φ = 597289530600.

The previous prime is 985527725573. The next prime is 985527725617.

It is a happy number.

985527725589 is a `hidden beast` number, since 98 + 5 + 527 + 7 + 2 + 5 + 5 + 8 + 9 = 666.

985527725589 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 985527725589 - 2⁴ = 985527725573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985527725549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4977412657 + ... + 4977412854.

It is an arithmetic number, because the mean of its divisors is an integer number (129412731656).

Almost surely, 2^985527725589 is an apocalyptic number.

985527725589 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

985527725589 is a deficient number, since it is larger than the sum of its proper divisors (567425054283).

985527725589 is a wasteful number, since it uses less digits than its factorization.

985527725589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9954825528 (or 9954825525 counting only the distinct ones).

The product of its digits is 635040000, while the sum is 72.

The spelling of 985527725589 in words is "nine hundred eighty-five billion, five hundred twenty-seven million, seven hundred twenty-five thousand, five hundred eighty-nine".