338931676397 has 2 divisors, whose sum is σ = 338931676398. Its totient is φ = 338931676396.

The previous prime is 338931676351. The next prime is 338931676439. The reversal of 338931676397 is 793676139833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229737117481 + 109194558916 = 479309^2 + 330446^2 .

It is a cyclic number.

It is not a de Polignac number, because 338931676397 - 2¹² = 338931672301 is a prime.

It is a super-2 number, since 2×338931676397² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338931676997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169465838198 + 169465838199.

It is an arithmetic number, because the mean of its divisors is an integer number (169465838199).

Almost surely, 2^338931676397 is an apocalyptic number.

It is an amenable number.

338931676397 is a deficient number, since it is larger than the sum of its proper divisors (1).

338931676397 is an equidigital number, since it uses as much as digits as its factorization.

338931676397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92588832, while the sum is 65.

The spelling of 338931676397 in words is "three hundred thirty-eight billion, nine hundred thirty-one million, six hundred seventy-six thousand, three hundred ninety-seven".