818468864818 has 8 divisors (see below), whose sum is σ = 1339312687920. Its totient is φ = 372031302180.

The previous prime is 818468864747. The next prime is 818468864839.

It is a happy number.

818468864818 is nontrivially palindromic in base 10.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18601565088 + ... + 18601565131.

It is an arithmetic number, because the mean of its divisors is an integer number (167414085990).

Almost surely, 2^818468864818 is an apocalyptic number.

818468864818 is a deficient number, since it is larger than the sum of its proper divisors (520843823102).

818468864818 is a wasteful number, since it uses less digits than its factorization.

818468864818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37203130232.

The product of its digits is 150994944, while the sum is 70.

The spelling of 818468864818 in words is "eight hundred eighteen billion, four hundred sixty-eight million, eight hundred sixty-four thousand, eight hundred eighteen".