85418844885 has 24 divisors (see below), whose sum is σ = 161519271264. Its totient is φ = 41415197280.

The previous prime is 85418844877. The next prime is 85418844971. The reversal of 85418844885 is 58844881458.

85418844885 is a `hidden beast` number, since 8 + 5 + 4 + 188 + 448 + 8 + 5 = 666.

It is not a de Polignac number, because 85418844885 - 2³ = 85418844877 is a prime.

It is a super-2 number, since 2×85418844885² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86281167 + ... + 86282156.

It is an arithmetic number, because the mean of its divisors is an integer number (6729969636).

Almost surely, 2^85418844885 is an apocalyptic number.

It is an amenable number.

85418844885 is a deficient number, since it is larger than the sum of its proper divisors (76100426379).

85418844885 is a wasteful number, since it uses less digits than its factorization.

85418844885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172563345 (or 172563342 counting only the distinct ones).

The product of its digits is 52428800, while the sum is 63.

The spelling of 85418844885 in words is "eighty-five billion, four hundred eighteen million, eight hundred forty-four thousand, eight hundred eighty-five".