1338942739171 has 2 divisors, whose sum is σ = 1338942739172. Its totient is φ = 1338942739170.

The previous prime is 1338942739159. The next prime is 1338942739223. The reversal of 1338942739171 is 1719372498331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1338942739171 - 2²¹ = 1338940642019 is a prime.

It is not a weakly prime, because it can be changed into another prime (1338942739571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669471369585 + 669471369586.

It is an arithmetic number, because the mean of its divisors is an integer number (669471369586).

Almost surely, 2^{1338942739171} is an apocalyptic number.

1338942739171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338942739171 is an equidigital number, since it uses as much as digits as its factorization.

1338942739171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6858432, while the sum is 58.

The spelling of 1338942739171 in words is "one trillion, three hundred thirty-eight billion, nine hundred forty-two million, seven hundred thirty-nine thousand, one hundred seventy-one".