85805673018 has 16 divisors (see below), whose sum is σ = 184812218976. Its totient is φ = 26401745520.

The previous prime is 85805673011. The next prime is 85805673049. The reversal of 85805673018 is 81037650858.

It is a super-2 number, since 2×85805673018² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85805673011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550036288 + ... + 550036443.

It is an arithmetic number, because the mean of its divisors is an integer number (11550763686).

Almost surely, 2^85805673018 is an apocalyptic number.

85805673018 is an abundant number, since it is smaller than the sum of its proper divisors (99006545958).

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

85805673018 is a wasteful number, since it uses less digits than its factorization.

85805673018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100072749.

The product of its (nonzero) digits is 1612800, while the sum is 51.

The spelling of 85805673018 in words is "eighty-five billion, eight hundred five million, six hundred seventy-three thousand, eighteen".