423361442389 has 2 divisors, whose sum is σ = 423361442390. Its totient is φ = 423361442388.

The previous prime is 423361442341. The next prime is 423361442419. The reversal of 423361442389 is 983244163324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 368469638289 + 54891804100 = 607017^2 + 234290^2 .

It is a cyclic number.

It is not a de Polignac number, because 423361442389 - 2¹⁵ = 423361409621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423361442989) 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, 211680721194 + 211680721195.

It is an arithmetic number, because the mean of its divisors is an integer number (211680721195).

Almost surely, 2^423361442389 is an apocalyptic number.

It is an amenable number.

423361442389 is a deficient number, since it is larger than the sum of its proper divisors (1).

423361442389 is an equidigital number, since it uses as much as digits as its factorization.

423361442389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2985984, while the sum is 49.

The spelling of 423361442389 in words is "four hundred twenty-three billion, three hundred sixty-one million, four hundred forty-two thousand, three hundred eighty-nine".