419808353917 has 2 divisors, whose sum is σ = 419808353918. Its totient is φ = 419808353916.

The previous prime is 419808353879. The next prime is 419808353941. The reversal of 419808353917 is 719353808914.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 419766635236 + 41718681 = 647894^2 + 6459^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-419808353917 is a prime.

It is a super-2 number, since 2×419808353917² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (419808353957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209904176958 + 209904176959.

It is an arithmetic number, because the mean of its divisors is an integer number (209904176959).

Almost surely, 2^419808353917 is an apocalyptic number.

It is an amenable number.

419808353917 is a deficient number, since it is larger than the sum of its proper divisors (1).

419808353917 is an equidigital number, since it uses as much as digits as its factorization.

419808353917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6531840, while the sum is 58.

The spelling of 419808353917 in words is "four hundred nineteen billion, eight hundred eight million, three hundred fifty-three thousand, nine hundred seventeen".