813441307318 has 32 divisors (see below), whose sum is σ = 1244457976320. Its totient is φ = 398663385120.

The previous prime is 813441307313. The next prime is 813441307319. The reversal of 813441307318 is 813703144318.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813441307313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97800496 + ... + 97808812.

It is an arithmetic number, because the mean of its divisors is an integer number (38889311760).

Almost surely, 2^813441307318 is an apocalyptic number.

813441307318 is a deficient number, since it is larger than the sum of its proper divisors (431016669002).

813441307318 is a wasteful number, since it uses less digits than its factorization.

813441307318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10692.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 813441307318 in words is "eight hundred thirteen billion, four hundred forty-one million, three hundred seven thousand, three hundred eighteen".