138282068789 has 2 divisors, whose sum is σ = 138282068790. Its totient is φ = 138282068788.

The previous prime is 138282068759. The next prime is 138282068801. The reversal of 138282068789 is 987860282831.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129720267889 + 8561800900 = 360167^2 + 92530^2 .

It is a cyclic number.

It is not a de Polignac number, because 138282068789 - 2²⁸ = 138013633333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138282068719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69141034394 + 69141034395.

It is an arithmetic number, because the mean of its divisors is an integer number (69141034395).

Almost surely, 2^138282068789 is an apocalyptic number.

It is an amenable number.

138282068789 is a deficient number, since it is larger than the sum of its proper divisors (1).

138282068789 is an equidigital number, since it uses as much as digits as its factorization.

138282068789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18579456, while the sum is 62.

The spelling of 138282068789 in words is "one hundred thirty-eight billion, two hundred eighty-two million, sixty-eight thousand, seven hundred eighty-nine".