19384135139 has 2 divisors, whose sum is σ = 19384135140. Its totient is φ = 19384135138.

The previous prime is 19384135061. The next prime is 19384135181. The reversal of 19384135139 is 93153148391.

It is a strong prime.

It is an emirp because it is prime and its reverse (93153148391) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19384135139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19384135093 and 19384135102.

It is not a weakly prime, because it can be changed into another prime (19384135039) 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, 9692067569 + 9692067570.

It is an arithmetic number, because the mean of its divisors is an integer number (9692067570).

Almost surely, 2^19384135139 is an apocalyptic number.

19384135139 is a deficient number, since it is larger than the sum of its proper divisors (1).

19384135139 is an equidigital number, since it uses as much as digits as its factorization.

19384135139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 47.

The spelling of 19384135139 in words is "nineteen billion, three hundred eighty-four million, one hundred thirty-five thousand, one hundred thirty-nine".