85805412918 has 64 divisors (see below), whose sum is σ = 182853720000. Its totient is φ = 26791478784.

The previous prime is 85805412899. The next prime is 85805412919. The reversal of 85805412918 is 81921450858.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85805412919) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2227768 + ... + 2265956.

It is an arithmetic number, because the mean of its divisors is an integer number (2857089375).

Almost surely, 2^85805412918 is an apocalyptic number.

85805412918 is an abundant number, since it is smaller than the sum of its proper divisors (97048307082).

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

85805412918 is a wasteful number, since it uses less digits than its factorization.

85805412918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38609.

The product of its (nonzero) digits is 921600, while the sum is 51.

The spelling of 85805412918 in words is "eighty-five billion, eight hundred five million, four hundred twelve thousand, nine hundred eighteen".