85289898258 has 96 divisors (see below), whose sum is σ = 197896697856. Its totient is φ = 26483000544.

The previous prime is 85289898223. The next prime is 85289898259.

85289898258 is a `hidden beast` number, since 8 + 5 + 289 + 8 + 98 + 258 = 666.

85289898258 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (85289898259) 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, 6170391 + ... + 6184197.

It is an arithmetic number, because the mean of its divisors is an integer number (2061423936).

Almost surely, 2^85289898258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85289898258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98948348928).

85289898258 is an abundant number, since it is smaller than the sum of its proper divisors (112606799598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85289898258 is a wasteful number, since it uses less digits than its factorization.

85289898258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14228 (or 14225 counting only the distinct ones).

The product of its digits is 265420800, while the sum is 72.

The spelling of 85289898258 in words is "eighty-five billion, two hundred eighty-nine million, eight hundred ninety-eight thousand, two hundred fifty-eight".