13684834727 has 2 divisors, whose sum is σ = 13684834728. Its totient is φ = 13684834726.

The previous prime is 13684834717. The next prime is 13684834729. The reversal of 13684834727 is 72743848631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13684834727 - 2¹² = 13684830631 is a prime.

Together with 13684834729, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13684834729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6842417363 + 6842417364.

It is an arithmetic number, because the mean of its divisors is an integer number (6842417364).

Almost surely, 2^13684834727 is an apocalyptic number.

13684834727 is a deficient number, since it is larger than the sum of its proper divisors (1).

13684834727 is an equidigital number, since it uses as much as digits as its factorization.

13684834727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5419008, while the sum is 53.

The spelling of 13684834727 in words is "thirteen billion, six hundred eighty-four million, eight hundred thirty-four thousand, seven hundred twenty-seven".