85285058198 has 4 divisors (see below), whose sum is σ = 127927587300. Its totient is φ = 42642529098.

The previous prime is 85285058191. The next prime is 85285058203. The reversal of 85285058198 is 89185058258.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89185058258 = 2 ⋅44592529129.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85285058191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21321264548 + ... + 21321264551.

It is an arithmetic number, because the mean of its divisors is an integer number (31981896825).

Almost surely, 2^85285058198 is an apocalyptic number.

85285058198 is a deficient number, since it is larger than the sum of its proper divisors (42642529102).

85285058198 is a wasteful number, since it uses less digits than its factorization.

85285058198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42642529101.

The product of its (nonzero) digits is 9216000, while the sum is 59.

The spelling of 85285058198 in words is "eighty-five billion, two hundred eighty-five million, fifty-eight thousand, one hundred ninety-eight".