16423194239 has 2 divisors, whose sum is σ = 16423194240. Its totient is φ = 16423194238.

The previous prime is 16423194173. The next prime is 16423194241. The reversal of 16423194239 is 93249132461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16423194239 - 2¹⁶ = 16423128703 is a prime.

Together with 16423194241, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16423194239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16423194269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8211597119 + 8211597120.

It is an arithmetic number, because the mean of its divisors is an integer number (8211597120).

Almost surely, 2^16423194239 is an apocalyptic number.

16423194239 is a deficient number, since it is larger than the sum of its proper divisors (1).

16423194239 is an equidigital number, since it uses as much as digits as its factorization.

16423194239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 44.

The spelling of 16423194239 in words is "sixteen billion, four hundred twenty-three million, one hundred ninety-four thousand, two hundred thirty-nine".