82438243439 has 2 divisors, whose sum is σ = 82438243440. Its totient is φ = 82438243438.

The previous prime is 82438243367. The next prime is 82438243457. The reversal of 82438243439 is 93434283428.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82438243439 - 2⁸ = 82438243183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82438233439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41219121719 + 41219121720.

It is an arithmetic number, because the mean of its divisors is an integer number (41219121720).

Almost surely, 2^82438243439 is an apocalyptic number.

82438243439 is a deficient number, since it is larger than the sum of its proper divisors (1).

82438243439 is an equidigital number, since it uses as much as digits as its factorization.

82438243439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3981312, while the sum is 50.

The spelling of 82438243439 in words is "eighty-two billion, four hundred thirty-eight million, two hundred forty-three thousand, four hundred thirty-nine".