19544795419 has 2 divisors, whose sum is σ = 19544795420. Its totient is φ = 19544795418.

The previous prime is 19544795357. The next prime is 19544795423. The reversal of 19544795419 is 91459744591.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19544795419 - 2¹¹ = 19544793371 is a prime.

It is a super-2 number, since 2×19544795419² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19544795119) 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, 9772397709 + 9772397710.

It is an arithmetic number, because the mean of its divisors is an integer number (9772397710).

Almost surely, 2^19544795419 is an apocalyptic number.

19544795419 is a deficient number, since it is larger than the sum of its proper divisors (1).

19544795419 is an equidigital number, since it uses as much as digits as its factorization.

19544795419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8164800, while the sum is 58.

The spelling of 19544795419 in words is "nineteen billion, five hundred forty-four million, seven hundred ninety-five thousand, four hundred nineteen".