13403637889 has 2 divisors, whose sum is σ = 13403637890. Its totient is φ = 13403637888.

The previous prime is 13403637869. The next prime is 13403637953. The reversal of 13403637889 is 98873630431.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9357660225 + 4045977664 = 96735^2 + 63608^2 .

It is a cyclic number.

It is not a de Polignac number, because 13403637889 - 2¹¹ = 13403635841 is a prime.

It is not a weakly prime, because it can be changed into another prime (13403637809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6701818944 + 6701818945.

It is an arithmetic number, because the mean of its divisors is an integer number (6701818945).

Almost surely, 2^13403637889 is an apocalyptic number.

It is an amenable number.

13403637889 is a deficient number, since it is larger than the sum of its proper divisors (1).

13403637889 is an equidigital number, since it uses as much as digits as its factorization.

13403637889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 13403637889 in words is "thirteen billion, four hundred three million, six hundred thirty-seven thousand, eight hundred eighty-nine".