85544844558 has 16 divisors (see below), whose sum is σ = 172853501520. Its totient is φ = 28220979456.

The previous prime is 85544844533. The next prime is 85544844571.

It is a happy number.

85544844558 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73491553 + ... + 73492716.

It is an arithmetic number, because the mean of its divisors is an integer number (10803343845).

Almost surely, 2^85544844558 is an apocalyptic number.

85544844558 is an abundant number, since it is smaller than the sum of its proper divisors (87308656962).

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

85544844558 is a wasteful number, since it uses less digits than its factorization.

85544844558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146984371.

The product of its digits is 81920000, while the sum is 60.

The spelling of 85544844558 in words is "eighty-five billion, five hundred forty-four million, eight hundred forty-four thousand, five hundred fifty-eight".