8194381318 has 8 divisors (see below), whose sum is σ = 12362622048. Its totient is φ = 4073507304.

The previous prime is 8194381297. The next prime is 8194381343. The reversal of 8194381318 is 8131834918.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11841246 + ... + 11841937.

It is an arithmetic number, because the mean of its divisors is an integer number (1545327756).

Almost surely, 2^8194381318 is an apocalyptic number.

8194381318 is a deficient number, since it is larger than the sum of its proper divisors (4168240730).

8194381318 is a wasteful number, since it uses less digits than its factorization.

8194381318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23683358.

The product of its digits is 165888, while the sum is 46.

The square root of 8194381318 is about 90522.8220837154. The cubic root of 8194381318 is about 2016.0689911604.

The spelling of 8194381318 in words is "eight billion, one hundred ninety-four million, three hundred eighty-one thousand, three hundred eighteen".