423342441889 has 2 divisors, whose sum is σ = 423342441890. Its totient is φ = 423342441888.

The previous prime is 423342441871. The next prime is 423342441913. The reversal of 423342441889 is 988144243324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 341766513664 + 81575928225 = 584608^2 + 285615^2 .

It is a cyclic number.

It is not a de Polignac number, because 423342441889 - 2⁵ = 423342441857 is a prime.

It is not a weakly prime, because it can be changed into another prime (423342441589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211671220944 + 211671220945.

It is an arithmetic number, because the mean of its divisors is an integer number (211671220945).

Almost surely, 2^423342441889 is an apocalyptic number.

It is an amenable number.

423342441889 is a deficient number, since it is larger than the sum of its proper divisors (1).

423342441889 is an equidigital number, since it uses as much as digits as its factorization.

423342441889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5308416, while the sum is 52.

The spelling of 423342441889 in words is "four hundred twenty-three billion, three hundred forty-two million, four hundred forty-one thousand, eight hundred eighty-nine".