209493341219 has 2 divisors, whose sum is σ = 209493341220. Its totient is φ = 209493341218.

The previous prime is 209493341171. The next prime is 209493341221. The reversal of 209493341219 is 912143394902.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 209493341219 - 2¹⁶ = 209493275683 is a prime.

It is a super-2 number, since 2×209493341219² (a number of 23 digits) contains 22 as substring.

Together with 209493341221, 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 (209493341269) 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, 104746670609 + 104746670610.

It is an arithmetic number, because the mean of its divisors is an integer number (104746670610).

Almost surely, 2^209493341219 is an apocalyptic number.

209493341219 is a deficient number, since it is larger than the sum of its proper divisors (1).

209493341219 is an equidigital number, since it uses as much as digits as its factorization.

209493341219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 209493341219 in words is "two hundred nine billion, four hundred ninety-three million, three hundred forty-one thousand, two hundred nineteen".