13897439049589 has 2 divisors, whose sum is σ = 13897439049590. Its totient is φ = 13897439049588.

The previous prime is 13897439049587. The next prime is 13897439049607. The reversal of 13897439049589 is 98594093479831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8501551410564 + 5395887639025 = 2915742^2 + 2322905^2 .

It is a cyclic number.

It is not a de Polignac number, because 13897439049589 - 2¹ = 13897439049587 is a prime.

Together with 13897439049587, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13897439049587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6948719524794 + 6948719524795.

It is an arithmetic number, because the mean of its divisors is an integer number (6948719524795).

Almost surely, 2^{13897439049589} is an apocalyptic number.

It is an amenable number.

13897439049589 is a deficient number, since it is larger than the sum of its proper divisors (1).

13897439049589 is an equidigital number, since it uses as much as digits as its factorization.

13897439049589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2116316160, while the sum is 79.

The spelling of 13897439049589 in words is "thirteen trillion, eight hundred ninety-seven billion, four hundred thirty-nine million, forty-nine thousand, five hundred eighty-nine".