138388416713 has 2 divisors, whose sum is σ = 138388416714. Its totient is φ = 138388416712.

The previous prime is 138388416619. The next prime is 138388416737. The reversal of 138388416713 is 317614883831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76545182224 + 61843234489 = 276668^2 + 248683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138388416713 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (138388416743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69194208356 + 69194208357.

It is an arithmetic number, because the mean of its divisors is an integer number (69194208357).

Almost surely, 2^138388416713 is an apocalyptic number.

It is an amenable number.

138388416713 is a deficient number, since it is larger than the sum of its proper divisors (1).

138388416713 is an equidigital number, since it uses as much as digits as its factorization.

138388416713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 53.

The spelling of 138388416713 in words is "one hundred thirty-eight billion, three hundred eighty-eight million, four hundred sixteen thousand, seven hundred thirteen".