338613985789 has 2 divisors, whose sum is σ = 338613985790. Its totient is φ = 338613985788.

The previous prime is 338613985771. The next prime is 338613985811. The reversal of 338613985789 is 987589316833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 334534992100 + 4078993689 = 578390^2 + 63867^2 .

It is a cyclic number.

It is not a de Polignac number, because 338613985789 - 2³³ = 330024051197 is a prime.

It is a super-2 number, since 2×338613985789² (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 (338613985729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169306992894 + 169306992895.

It is an arithmetic number, because the mean of its divisors is an integer number (169306992895).

Almost surely, 2^338613985789 is an apocalyptic number.

It is an amenable number.

338613985789 is a deficient number, since it is larger than the sum of its proper divisors (1).

338613985789 is an equidigital number, since it uses as much as digits as its factorization.

338613985789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 235146240, while the sum is 70.

The spelling of 338613985789 in words is "three hundred thirty-eight billion, six hundred thirteen million, nine hundred eighty-five thousand, seven hundred eighty-nine".