418207943819 has 2 divisors, whose sum is σ = 418207943820. Its totient is φ = 418207943818.

The previous prime is 418207943773. The next prime is 418207943821. The reversal of 418207943819 is 918349702814.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 418207943819 - 2⁸ = 418207943563 is a prime.

It is a super-2 number, since 2×418207943819² (a number of 24 digits) contains 22 as substring.

Together with 418207943821, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (418207943519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209103971909 + 209103971910.

It is an arithmetic number, because the mean of its divisors is an integer number (209103971910).

Almost surely, 2^418207943819 is an apocalyptic number.

418207943819 is a deficient number, since it is larger than the sum of its proper divisors (1).

418207943819 is an equidigital number, since it uses as much as digits as its factorization.

418207943819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3483648, while the sum is 56.

The spelling of 418207943819 in words is "four hundred eighteen billion, two hundred seven million, nine hundred forty-three thousand, eight hundred nineteen".