318804394241 has 4 divisors (see below), whose sum is σ = 318809232084. Its totient is φ = 318799556400.

The previous prime is 318804394187. The next prime is 318804394301. The reversal of 318804394241 is 142493408813.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11782017025 + 307022377216 = 108545^2 + 554096^2 .

It is a cyclic number.

It is not a de Polignac number, because 318804394241 - 2²² = 318800199937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318804396241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2318690 + ... + 2452331.

It is an arithmetic number, because the mean of its divisors is an integer number (79702308021).

Almost surely, 2^318804394241 is an apocalyptic number.

It is an amenable number.

318804394241 is a deficient number, since it is larger than the sum of its proper divisors (4837843).

318804394241 is an equidigital number, since it uses as much as digits as its factorization.

318804394241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4837842.

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 318804394241 in words is "three hundred eighteen billion, eight hundred four million, three hundred ninety-four thousand, two hundred forty-one".