138340789907 has 2 divisors, whose sum is σ = 138340789908. Its totient is φ = 138340789906.

The previous prime is 138340789877. The next prime is 138340789913. The reversal of 138340789907 is 709987043831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138340789907 - 2⁶ = 138340789843 is a prime.

It is not a weakly prime, because it can be changed into another prime (138340789927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69170394953 + 69170394954.

It is an arithmetic number, because the mean of its divisors is an integer number (69170394954).

Almost surely, 2^138340789907 is an apocalyptic number.

138340789907 is a deficient number, since it is larger than the sum of its proper divisors (1).

138340789907 is an equidigital number, since it uses as much as digits as its factorization.

138340789907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9144576, while the sum is 59.

The spelling of 138340789907 in words is "one hundred thirty-eight billion, three hundred forty million, seven hundred eighty-nine thousand, nine hundred seven".