19519848419 has 2 divisors, whose sum is σ = 19519848420. Its totient is φ = 19519848418.

The previous prime is 19519848377. The next prime is 19519848437. The reversal of 19519848419 is 91484891591.

It is a strong prime.

It is an emirp because it is prime and its reverse (91484891591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19519848419 - 2¹⁶ = 19519782883 is a prime.

It is a super-2 number, since 2×19519848419² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19519848499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9759924209 + 9759924210.

It is an arithmetic number, because the mean of its divisors is an integer number (9759924210).

Almost surely, 2^19519848419 is an apocalyptic number.

19519848419 is a deficient number, since it is larger than the sum of its proper divisors (1).

19519848419 is an equidigital number, since it uses as much as digits as its factorization.

19519848419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 59.

The spelling of 19519848419 in words is "nineteen billion, five hundred nineteen million, eight hundred forty-eight thousand, four hundred nineteen".