813666969666318 has 8 divisors (see below), whose sum is σ = 1627333939332648. Its totient is φ = 271222323222104.

The previous prime is 813666969666263. The next prime is 813666969666379.

813666969666318 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

813666969666318 is an admirable number.

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, 67805580805521 + ... + 67805580805532.

It is an arithmetic number, because the mean of its divisors is an integer number (203416742416581).

Almost surely, 2^{813666969666318} is an apocalyptic number.

813666969666318 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

813666969666318 is a wasteful number, since it uses less digits than its factorization.

813666969666318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135611161611058.

The product of its digits is 13060694016, while the sum is 84.

The spelling of 813666969666318 in words is "eight hundred thirteen trillion, six hundred sixty-six billion, nine hundred sixty-nine million, six hundred sixty-six thousand, three hundred eighteen".