423443340179 has 2 divisors, whose sum is σ = 423443340180. Its totient is φ = 423443340178.

The previous prime is 423443340167. The next prime is 423443340247. The reversal of 423443340179 is 971043344324.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423443340179 - 2⁸ = 423443339923 is a prime.

It is not a weakly prime, because it can be changed into another prime (423443340119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211721670089 + 211721670090.

It is an arithmetic number, because the mean of its divisors is an integer number (211721670090).

Almost surely, 2^423443340179 is an apocalyptic number.

423443340179 is a deficient number, since it is larger than the sum of its proper divisors (1).

423443340179 is an equidigital number, since it uses as much as digits as its factorization.

423443340179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 44.

The spelling of 423443340179 in words is "four hundred twenty-three billion, four hundred forty-three million, three hundred forty thousand, one hundred seventy-nine".