423939618343 has 2 divisors, whose sum is σ = 423939618344. Its totient is φ = 423939618342.

The previous prime is 423939618301. The next prime is 423939618371. The reversal of 423939618343 is 343816939324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423939618343 - 2¹⁷ = 423939487271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423939618043) 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, 211969809171 + 211969809172.

It is an arithmetic number, because the mean of its divisors is an integer number (211969809172).

Almost surely, 2^423939618343 is an apocalyptic number.

423939618343 is a deficient number, since it is larger than the sum of its proper divisors (1).

423939618343 is an equidigital number, since it uses as much as digits as its factorization.

423939618343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10077696, while the sum is 55.

The spelling of 423939618343 in words is "four hundred twenty-three billion, nine hundred thirty-nine million, six hundred eighteen thousand, three hundred forty-three".