18164673418 has 16 divisors (see below), whose sum is σ = 27297927360. Its totient is φ = 9065380896.

The previous prime is 18164673413. The next prime is 18164673419. The reversal of 18164673418 is 81437646181.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18164673413) 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, 3283771 + ... + 3289297.

It is an arithmetic number, because the mean of its divisors is an integer number (1706120460).

Almost surely, 2^18164673418 is an apocalyptic number.

18164673418 is a deficient number, since it is larger than the sum of its proper divisors (9133253942).

18164673418 is a wasteful number, since it uses less digits than its factorization.

18164673418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8301.

The product of its digits is 774144, while the sum is 49.

The spelling of 18164673418 in words is "eighteen billion, one hundred sixty-four million, six hundred seventy-three thousand, four hundred eighteen".