418768996377617 has 2 divisors, whose sum is σ = 418768996377618. Its totient is φ = 418768996377616.

The previous prime is 418768996377581. The next prime is 418768996377629. The reversal of 418768996377617 is 716773699867814.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209526522450961 + 209242473926656 = 14475031^2 + 14465216^2 .

It is a cyclic number.

It is not a de Polignac number, because 418768996377617 - 2⁴⁰ = 417669484749841 is a prime.

It is not a weakly prime, because it can be changed into another prime (418768996377637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209384498188808 + 209384498188809.

It is an arithmetic number, because the mean of its divisors is an integer number (209384498188809).

Almost surely, 2^{418768996377617} is an apocalyptic number.

It is an amenable number.

418768996377617 is a deficient number, since it is larger than the sum of its proper divisors (1).

418768996377617 is an equidigital number, since it uses as much as digits as its factorization.

418768996377617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32262064128, while the sum is 89.

The spelling of 418768996377617 in words is "four hundred eighteen trillion, seven hundred sixty-eight billion, nine hundred ninety-six million, three hundred seventy-seven thousand, six hundred seventeen".