13280739361 has 2 divisors, whose sum is σ = 13280739362. Its totient is φ = 13280739360.

The previous prime is 13280739347. The next prime is 13280739389. The reversal of 13280739361 is 16393708231.

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., 11311598736 + 1969140625 = 106356^2 + 44375^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13280739361 is a prime.

It is not a weakly prime, because it can be changed into another prime (13280739391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6640369680 + 6640369681.

It is an arithmetic number, because the mean of its divisors is an integer number (6640369681).

Almost surely, 2^13280739361 is an apocalyptic number.

It is an amenable number.

13280739361 is a deficient number, since it is larger than the sum of its proper divisors (1).

13280739361 is an equidigital number, since it uses as much as digits as its factorization.

13280739361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 13280739361 in words is "thirteen billion, two hundred eighty million, seven hundred thirty-nine thousand, three hundred sixty-one".