13343487709 has 2 divisors, whose sum is σ = 13343487710. Its totient is φ = 13343487708.

The previous prime is 13343487673. The next prime is 13343487727. The reversal of 13343487709 is 90778434331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12757702500 + 585785209 = 112950^2 + 24203^2 .

It is a cyclic number.

It is not a de Polignac number, because 13343487709 - 2⁹ = 13343487197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13343487749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6671743854 + 6671743855.

It is an arithmetic number, because the mean of its divisors is an integer number (6671743855).

Almost surely, 2^13343487709 is an apocalyptic number.

It is an amenable number.

13343487709 is a deficient number, since it is larger than the sum of its proper divisors (1).

13343487709 is an equidigital number, since it uses as much as digits as its factorization.

13343487709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 13343487709 in words is "thirteen billion, three hundred forty-three million, four hundred eighty-seven thousand, seven hundred nine".