813723327318 has 32 divisors (see below), whose sum is σ = 1805487822720. Its totient is φ = 242403455360.

The previous prime is 813723327311. The next prime is 813723327341.

813723327318 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813723327311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104480355 + ... + 104488142.

It is an arithmetic number, because the mean of its divisors is an integer number (56421494460).

Almost surely, 2^813723327318 is an apocalyptic number.

813723327318 is an abundant number, since it is smaller than the sum of its proper divisors (991764495402).

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

813723327318 is a wasteful number, since it uses less digits than its factorization.

813723327318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208968572.

The product of its digits is 1016064, while the sum is 48.

The spelling of 813723327318 in words is "eight hundred thirteen billion, seven hundred twenty-three million, three hundred twenty-seven thousand, three hundred eighteen".