985527458609 has 4 divisors (see below), whose sum is σ = 985899779904. Its totient is φ = 985155137316.

The previous prime is 985527458603. The next prime is 985527458627. The reversal of 985527458609 is 906854725589.

985527458609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 985527458609 - 2⁴ = 985527458593 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (985527458603) 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, 186156677 + ... + 186161970.

It is an arithmetic number, because the mean of its divisors is an integer number (246474944976).

Almost surely, 2^985527458609 is an apocalyptic number.

It is an amenable number.

985527458609 is a deficient number, since it is larger than the sum of its proper divisors (372321295).

985527458609 is a wasteful number, since it uses less digits than its factorization.

985527458609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372321294.

The product of its (nonzero) digits is 217728000, while the sum is 68.

The spelling of 985527458609 in words is "nine hundred eighty-five billion, five hundred twenty-seven million, four hundred fifty-eight thousand, six hundred nine".