138608429347 has 2 divisors, whose sum is σ = 138608429348. Its totient is φ = 138608429346.

The previous prime is 138608429341. The next prime is 138608429363. The reversal of 138608429347 is 743924806831.

It is a weak prime.

It is an emirp because it is prime and its reverse (743924806831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138608429347 - 2³ = 138608429339 is a prime.

It is not a weakly prime, because it can be changed into another prime (138608429341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69304214673 + 69304214674.

It is an arithmetic number, because the mean of its divisors is an integer number (69304214674).

Almost surely, 2^138608429347 is an apocalyptic number.

138608429347 is a deficient number, since it is larger than the sum of its proper divisors (1).

138608429347 is an equidigital number, since it uses as much as digits as its factorization.

138608429347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6967296, while the sum is 55.

The spelling of 138608429347 in words is "one hundred thirty-eight billion, six hundred eight million, four hundred twenty-nine thousand, three hundred forty-seven".