19139219507 has 2 divisors, whose sum is σ = 19139219508. Its totient is φ = 19139219506.

The previous prime is 19139219503. The next prime is 19139219513. The reversal of 19139219507 is 70591293191.

It is a weak prime.

It is an emirp because it is prime and its reverse (70591293191) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19139219507 - 2² = 19139219503 is a prime.

It is not a weakly prime, because it can be changed into another prime (19139219503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9569609753 + 9569609754.

It is an arithmetic number, because the mean of its divisors is an integer number (9569609754).

Almost surely, 2^19139219507 is an apocalyptic number.

19139219507 is a deficient number, since it is larger than the sum of its proper divisors (1).

19139219507 is an equidigital number, since it uses as much as digits as its factorization.

19139219507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 153090, while the sum is 47.

The spelling of 19139219507 in words is "nineteen billion, one hundred thirty-nine million, two hundred nineteen thousand, five hundred seven".