19225959019 has 2 divisors, whose sum is σ = 19225959020. Its totient is φ = 19225959018.

The previous prime is 19225959017. The next prime is 19225959029. The reversal of 19225959019 is 91095952291.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19225959019 - 2¹ = 19225959017 is a prime.

It is a super-2 number, since 2×19225959019² (a number of 21 digits) contains 22 as substring.

Together with 19225959017, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (19225959017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9612979509 + 9612979510.

It is an arithmetic number, because the mean of its divisors is an integer number (9612979510).

Almost surely, 2^19225959019 is an apocalyptic number.

19225959019 is a deficient number, since it is larger than the sum of its proper divisors (1).

19225959019 is an equidigital number, since it uses as much as digits as its factorization.

19225959019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 656100, while the sum is 52.

The spelling of 19225959019 in words is "nineteen billion, two hundred twenty-five million, nine hundred fifty-nine thousand, nineteen".