338739046778933 has 2 divisors, whose sum is σ = 338739046778934. Its totient is φ = 338739046778932.

The previous prime is 338739046778879. The next prime is 338739046778959. The reversal of 338739046778933 is 339877640937833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203619857428849 + 135119189350084 = 14269543^2 + 11624078^2 .

It is a cyclic number.

It is not a de Polignac number, because 338739046778933 - 2¹² = 338739046774837 is a prime.

It is a super-2 number, since 2×338739046778933² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338739046771933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169369523389466 + 169369523389467.

It is an arithmetic number, because the mean of its divisors is an integer number (169369523389467).

Almost surely, 2^{338739046778933} is an apocalyptic number.

It is an amenable number.

338739046778933 is a deficient number, since it is larger than the sum of its proper divisors (1).

338739046778933 is an equidigital number, since it uses as much as digits as its factorization.

338739046778933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10369949184, while the sum is 80.

The spelling of 338739046778933 in words is "three hundred thirty-eight trillion, seven hundred thirty-nine billion, forty-six million, seven hundred seventy-eight thousand, nine hundred thirty-three".