338342589493 has 2 divisors, whose sum is σ = 338342589494. Its totient is φ = 338342589492.

The previous prime is 338342589463. The next prime is 338342589527. The reversal of 338342589493 is 394985243833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 331635470884 + 6707118609 = 575878^2 + 81897^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-338342589493 is a prime.

It is a super-2 number, since 2×338342589493² (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 (338342589463) 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, 169171294746 + 169171294747.

It is an arithmetic number, because the mean of its divisors is an integer number (169171294747).

Almost surely, 2^338342589493 is an apocalyptic number.

It is an amenable number.

338342589493 is a deficient number, since it is larger than the sum of its proper divisors (1).

338342589493 is an equidigital number, since it uses as much as digits as its factorization.

338342589493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67184640, while the sum is 61.

The spelling of 338342589493 in words is "three hundred thirty-eight billion, three hundred forty-two million, five hundred eighty-nine thousand, four hundred ninety-three".