13683697771 has 2 divisors, whose sum is σ = 13683697772. Its totient is φ = 13683697770.

The previous prime is 13683697751. The next prime is 13683697793. The reversal of 13683697771 is 17779638631.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13683697771 is a prime.

It is not a weakly prime, because it can be changed into another prime (13683697721) 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, 6841848885 + 6841848886.

It is an arithmetic number, because the mean of its divisors is an integer number (6841848886).

Almost surely, 2^13683697771 is an apocalyptic number.

13683697771 is a deficient number, since it is larger than the sum of its proper divisors (1).

13683697771 is an equidigital number, since it uses as much as digits as its factorization.

13683697771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8001504, while the sum is 58.

The spelling of 13683697771 in words is "thirteen billion, six hundred eighty-three million, six hundred ninety-seven thousand, seven hundred seventy-one".