318068267849 has 2 divisors, whose sum is σ = 318068267850. Its totient is φ = 318068267848.

The previous prime is 318068267843. The next prime is 318068267861. The reversal of 318068267849 is 948762860813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252739463824 + 65328804025 = 502732^2 + 255595^2 .

It is an emirp because it is prime and its reverse (948762860813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 318068267849 - 2²⁴ = 318051490633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 318068267791 and 318068267800.

It is not a weakly prime, because it can be changed into another prime (318068267843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159034133924 + 159034133925.

It is an arithmetic number, because the mean of its divisors is an integer number (159034133925).

Almost surely, 2^318068267849 is an apocalyptic number.

It is an amenable number.

318068267849 is a deficient number, since it is larger than the sum of its proper divisors (1).

318068267849 is an equidigital number, since it uses as much as digits as its factorization.

318068267849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27869184, while the sum is 62.

The spelling of 318068267849 in words is "three hundred eighteen billion, sixty-eight million, two hundred sixty-seven thousand, eight hundred forty-nine".