85808505806 has 8 divisors (see below), whose sum is σ = 128716508160. Its totient is φ = 42903003088.

The previous prime is 85808505791. The next prime is 85808505851. The reversal of 85808505806 is 60850580858.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 536591 + ... + 677898.

It is an arithmetic number, because the mean of its divisors is an integer number (16089563520).

Almost surely, 2^85808505806 is an apocalyptic number.

85808505806 is a deficient number, since it is larger than the sum of its proper divisors (42908002354).

85808505806 is a wasteful number, since it uses less digits than its factorization.

85808505806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249818.

The product of its (nonzero) digits is 3072000, while the sum is 53.

The spelling of 85808505806 in words is "eighty-five billion, eight hundred eight million, five hundred five thousand, eight hundred six".