19399703223 has 4 divisors (see below), whose sum is σ = 25866270968. Its totient is φ = 12933135480.

The previous prime is 19399703189. The next prime is 19399703233. The reversal of 19399703223 is 32230799391.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 19399703223 - 2²⁰ = 19398654647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19399703233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3233283868 + ... + 3233283873.

It is an arithmetic number, because the mean of its divisors is an integer number (6466567742).

Almost surely, 2^19399703223 is an apocalyptic number.

19399703223 is a deficient number, since it is larger than the sum of its proper divisors (6466567745).

19399703223 is an equidigital number, since it uses as much as digits as its factorization.

19399703223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6466567744.

The product of its (nonzero) digits is 551124, while the sum is 48.

The spelling of 19399703223 in words is "nineteen billion, three hundred ninety-nine million, seven hundred three thousand, two hundred twenty-three".