13447958393 has 2 divisors, whose sum is σ = 13447958394. Its totient is φ = 13447958392.

The previous prime is 13447958347. The next prime is 13447958431. The reversal of 13447958393 is 39385974431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10938649744 + 2509308649 = 104588^2 + 50093^2 .

It is an emirp because it is prime and its reverse (39385974431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13447958393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13447958333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6723979196 + 6723979197.

It is an arithmetic number, because the mean of its divisors is an integer number (6723979197).

Almost surely, 2^13447958393 is an apocalyptic number.

It is an amenable number.

13447958393 is a deficient number, since it is larger than the sum of its proper divisors (1).

13447958393 is an equidigital number, since it uses as much as digits as its factorization.

13447958393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9797760, while the sum is 56.

The spelling of 13447958393 in words is "thirteen billion, four hundred forty-seven million, nine hundred fifty-eight thousand, three hundred ninety-three".