85854933945858 has 128 divisors (see below), whose sum is σ = 214592120432640. Its totient is φ = 22246679992320.

The previous prime is 85854933945827. The next prime is 85854933945881.

85854933945858 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 344692441 + ... + 344941427.

It is an arithmetic number, because the mean of its divisors is an integer number (1676500940880).

Almost surely, 2^{85854933945858} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85854933945858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107296060216320).

85854933945858 is an abundant number, since it is smaller than the sum of its proper divisors (128737186486782).

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

85854933945858 is a wasteful number, since it uses less digits than its factorization.

85854933945858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250792.

The product of its digits is 29859840000, while the sum is 84.

The spelling of 85854933945858 in words is "eighty-five trillion, eight hundred fifty-four billion, nine hundred thirty-three million, nine hundred forty-five thousand, eight hundred fifty-eight".