13893663829 has 2 divisors, whose sum is σ = 13893663830. Its totient is φ = 13893663828.

The previous prime is 13893663779. The next prime is 13893663851. The reversal of 13893663829 is 92836639831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13808600100 + 85063729 = 117510^2 + 9223^2 .

It is a cyclic number.

It is not a de Polignac number, because 13893663829 - 2⁷ = 13893663701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13893663229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6946831914 + 6946831915.

It is an arithmetic number, because the mean of its divisors is an integer number (6946831915).

Almost surely, 2^13893663829 is an apocalyptic number.

It is an amenable number.

13893663829 is a deficient number, since it is larger than the sum of its proper divisors (1).

13893663829 is an equidigital number, since it uses as much as digits as its factorization.

13893663829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10077696, while the sum is 58.

The spelling of 13893663829 in words is "thirteen billion, eight hundred ninety-three million, six hundred sixty-three thousand, eight hundred twenty-nine".