138328712447179 has 2 divisors, whose sum is σ = 138328712447180. Its totient is φ = 138328712447178.

The previous prime is 138328712447129. The next prime is 138328712447197. The reversal of 138328712447179 is 971744217823831.

Together with next prime (138328712447197) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138328712447179 - 2³³ = 138320122512587 is a prime.

It is not a weakly prime, because it can be changed into another prime (138328712447129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69164356223589 + 69164356223590.

It is an arithmetic number, because the mean of its divisors is an integer number (69164356223590).

Almost surely, 2^{138328712447179} is an apocalyptic number.

138328712447179 is a deficient number, since it is larger than the sum of its proper divisors (1).

138328712447179 is an equidigital number, since it uses as much as digits as its factorization.

138328712447179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113799168, while the sum is 67.

The spelling of 138328712447179 in words is "one hundred thirty-eight trillion, three hundred twenty-eight billion, seven hundred twelve million, four hundred forty-seven thousand, one hundred seventy-nine".