19559514119 has 2 divisors, whose sum is σ = 19559514120. Its totient is φ = 19559514118.

The previous prime is 19559514089. The next prime is 19559514133. The reversal of 19559514119 is 91141595591.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19559514119 - 2²⁰ = 19558465543 is a prime.

It is a super-2 number, since 2×19559514119² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19559514199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9779757059 + 9779757060.

It is an arithmetic number, because the mean of its divisors is an integer number (9779757060).

Almost surely, 2^19559514119 is an apocalyptic number.

19559514119 is a deficient number, since it is larger than the sum of its proper divisors (1).

19559514119 is an equidigital number, since it uses as much as digits as its factorization.

19559514119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 364500, while the sum is 50.

The spelling of 19559514119 in words is "nineteen billion, five hundred fifty-nine million, five hundred fourteen thousand, one hundred nineteen".