19839466223 has 2 divisors, whose sum is σ = 19839466224. Its totient is φ = 19839466222.

The previous prime is 19839466177. The next prime is 19839466301. The reversal of 19839466223 is 32266493891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19839466223 - 2¹² = 19839462127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19839468223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9919733111 + 9919733112.

It is an arithmetic number, because the mean of its divisors is an integer number (9919733112).

Almost surely, 2^19839466223 is an apocalyptic number.

19839466223 is a deficient number, since it is larger than the sum of its proper divisors (1).

19839466223 is an equidigital number, since it uses as much as digits as its factorization.

19839466223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3359232, while the sum is 53.

The spelling of 19839466223 in words is "nineteen billion, eight hundred thirty-nine million, four hundred sixty-six thousand, two hundred twenty-three".