13026680369 has 2 divisors, whose sum is σ = 13026680370. Its totient is φ = 13026680368.

The previous prime is 13026680323. The next prime is 13026680437. The reversal of 13026680369 is 96308662031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10003000225 + 3023680144 = 100015^2 + 54988^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13026680369 is a prime.

It is a super-2 number, since 2×13026680369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13026680869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6513340184 + 6513340185.

It is an arithmetic number, because the mean of its divisors is an integer number (6513340185).

Almost surely, 2^13026680369 is an apocalyptic number.

It is an amenable number.

13026680369 is a deficient number, since it is larger than the sum of its proper divisors (1).

13026680369 is an equidigital number, since it uses as much as digits as its factorization.

13026680369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 44.

The spelling of 13026680369 in words is "thirteen billion, twenty-six million, six hundred eighty thousand, three hundred sixty-nine".