13827493109 has 2 divisors, whose sum is σ = 13827493110. Its totient is φ = 13827493108.

The previous prime is 13827493091. The next prime is 13827493111. The reversal of 13827493109 is 90139472831.

Together with previous prime (13827493091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13824586084 + 2907025 = 117578^2 + 1705^2 .

It is a cyclic number.

It is not a de Polignac number, because 13827493109 - 2⁸ = 13827492853 is a prime.

Together with 13827493111, 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 (13827493139) 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, 6913746554 + 6913746555.

It is an arithmetic number, because the mean of its divisors is an integer number (6913746555).

Almost surely, 2^13827493109 is an apocalyptic number.

It is an amenable number.

13827493109 is a deficient number, since it is larger than the sum of its proper divisors (1).

13827493109 is an equidigital number, since it uses as much as digits as its factorization.

13827493109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 13827493109 in words is "thirteen billion, eight hundred twenty-seven million, four hundred ninety-three thousand, one hundred nine".