19344879419 has 4 divisors (see below), whose sum is σ = 19372476240. Its totient is φ = 19317282600.

The previous prime is 19344879401. The next prime is 19344879427. The reversal of 19344879419 is 91497844391.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91497844391 = 239 ⋅382836169.

It is a cyclic number.

It is not a de Polignac number, because 19344879419 - 2¹⁶ = 19344813883 is a prime.

It is a super-2 number, since 2×19344879419² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19344869419) 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 in 3 ways as a sum of consecutive naturals, for example, 13797359 + ... + 13798760.

It is an arithmetic number, because the mean of its divisors is an integer number (4843119060).

Almost surely, 2^19344879419 is an apocalyptic number.

19344879419 is a deficient number, since it is larger than the sum of its proper divisors (27596821).

19344879419 is an equidigital number, since it uses as much as digits as its factorization.

19344879419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27596820.

The product of its digits is 7838208, while the sum is 59.

The spelling of 19344879419 in words is "nineteen billion, three hundred forty-four million, eight hundred seventy-nine thousand, four hundred nineteen".