18473814507085 has 128 divisors (see below), whose sum is σ = 28381976985600. Its totient is φ = 11246497726464.

The previous prime is 18473814507077. The next prime is 18473814507193. The reversal of 18473814507085 is 58070541837481.

It is a happy number.

It is not a de Polignac number, because 18473814507085 - 2³ = 18473814507077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 290213341 + ... + 290276989.

It is an arithmetic number, because the mean of its divisors is an integer number (221734195200).

Almost surely, 2^{18473814507085} is an apocalyptic number.

It is an amenable number.

18473814507085 is a deficient number, since it is larger than the sum of its proper divisors (9908162478515).

18473814507085 is a wasteful number, since it uses less digits than its factorization.

18473814507085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63995.

The product of its (nonzero) digits is 30105600, while the sum is 61.

The spelling of 18473814507085 in words is "eighteen trillion, four hundred seventy-three billion, eight hundred fourteen million, five hundred seven thousand, eighty-five".