3816318917 has 2 divisors, whose sum is σ = 3816318918. Its totient is φ = 3816318916.

The previous prime is 3816318851. The next prime is 3816318923. The reversal of 3816318917 is 7198136183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2145635041 + 1670683876 = 46321^2 + 40874^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3816318917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3816318617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1908159458 + 1908159459.

It is an arithmetic number, because the mean of its divisors is an integer number (1908159459).

Almost surely, 2^3816318917 is an apocalyptic number.

It is an amenable number.

3816318917 is a deficient number, since it is larger than the sum of its proper divisors (1).

3816318917 is an equidigital number, since it uses as much as digits as its factorization.

3816318917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 47.

The square root of 3816318917 is about 61776.3621217695. The cubic root of 3816318917 is about 1562.7213781010.

The spelling of 3816318917 in words is "three billion, eight hundred sixteen million, three hundred eighteen thousand, nine hundred seventeen".