85105855485 has 48 divisors (see below), whose sum is σ = 170137418880. Its totient is φ = 38548586880.

The previous prime is 85105855433. The next prime is 85105855511. The reversal of 85105855485 is 58455850158.

85105855485 is a `hidden beast` number, since 8 + 5 + 1 + 0 + 5 + 8 + 554 + 85 = 666.

It is not a de Polignac number, because 85105855485 - 2⁸ = 85105855229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1205011 + ... + 1273680.

It is an arithmetic number, because the mean of its divisors is an integer number (3544529560).

Almost surely, 2^85105855485 is an apocalyptic number.

It is an amenable number.

85105855485 is a deficient number, since it is larger than the sum of its proper divisors (85031563395).

85105855485 is a wasteful number, since it uses less digits than its factorization.

85105855485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478818 (or 2478815 counting only the distinct ones).

The product of its (nonzero) digits is 6400000, while the sum is 54.

The spelling of 85105855485 in words is "eighty-five billion, one hundred five million, eight hundred fifty-five thousand, four hundred eighty-five".