13505383349 has 2 divisors, whose sum is σ = 13505383350. Its totient is φ = 13505383348.

The previous prime is 13505383343. The next prime is 13505383391. The reversal of 13505383349 is 94338350531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12510422500 + 994960849 = 111850^2 + 31543^2 .

It is an emirp because it is prime and its reverse (94338350531) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13505383349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13505383343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6752691674 + 6752691675.

It is an arithmetic number, because the mean of its divisors is an integer number (6752691675).

Almost surely, 2^13505383349 is an apocalyptic number.

It is an amenable number.

13505383349 is a deficient number, since it is larger than the sum of its proper divisors (1).

13505383349 is an equidigital number, since it uses as much as digits as its factorization.

13505383349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 583200, while the sum is 44.

The spelling of 13505383349 in words is "thirteen billion, five hundred five million, three hundred eighty-three thousand, three hundred forty-nine".