13308866647 has 2 divisors, whose sum is σ = 13308866648. Its totient is φ = 13308866646.

The previous prime is 13308866611. The next prime is 13308866677. The reversal of 13308866647 is 74666880331.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (74666880331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13308866647 - 2²⁷ = 13174648919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13308866594 and 13308866603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13308866677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6654433323 + 6654433324.

It is an arithmetic number, because the mean of its divisors is an integer number (6654433324).

Almost surely, 2^13308866647 is an apocalyptic number.

13308866647 is a deficient number, since it is larger than the sum of its proper divisors (1).

13308866647 is an equidigital number, since it uses as much as digits as its factorization.

13308866647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 13308866647 in words is "thirteen billion, three hundred eight million, eight hundred sixty-six thousand, six hundred forty-seven".