13347719449 has 2 divisors, whose sum is σ = 13347719450. Its totient is φ = 13347719448.

The previous prime is 13347719389. The next prime is 13347719471. The reversal of 13347719449 is 94491774331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13278413824 + 69305625 = 115232^2 + 8325^2 .

It is a cyclic number.

It is not a de Polignac number, because 13347719449 - 2¹¹ = 13347717401 is a prime.

It is a super-2 number, since 2×13347719449² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13347719396 and 13347719405.

It is not a weakly prime, because it can be changed into another prime (13347719149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6673859724 + 6673859725.

It is an arithmetic number, because the mean of its divisors is an integer number (6673859725).

Almost surely, 2^13347719449 is an apocalyptic number.

It is an amenable number.

13347719449 is a deficient number, since it is larger than the sum of its proper divisors (1).

13347719449 is an equidigital number, since it uses as much as digits as its factorization.

13347719449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 52.

The spelling of 13347719449 in words is "thirteen billion, three hundred forty-seven million, seven hundred nineteen thousand, four hundred forty-nine".