318743406818 has 8 divisors (see below), whose sum is σ = 484849126080. Its totient is φ = 157127031460.

The previous prime is 318743406803. The next prime is 318743406823. The reversal of 318743406818 is 818604347813.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 318743406818.

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, 1122335798 + ... + 1122336081.

It is an arithmetic number, because the mean of its divisors is an integer number (60606140760).

Almost surely, 2^318743406818 is an apocalyptic number.

318743406818 is a deficient number, since it is larger than the sum of its proper divisors (166105719262).

318743406818 is a wasteful number, since it uses less digits than its factorization.

318743406818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244671952.

The product of its (nonzero) digits is 3096576, while the sum is 53.

The spelling of 318743406818 in words is "three hundred eighteen billion, seven hundred forty-three million, four hundred six thousand, eight hundred eighteen".