13877627809 has 2 divisors, whose sum is σ = 13877627810. Its totient is φ = 13877627808.

The previous prime is 13877627717. The next prime is 13877627821. The reversal of 13877627809 is 90872677831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11974487184 + 1903140625 = 109428^2 + 43625^2 .

It is a cyclic number.

It is not a de Polignac number, because 13877627809 - 2⁹ = 13877627297 is a prime.

It is not a weakly prime, because it can be changed into another prime (13877627849) 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, 6938813904 + 6938813905.

It is an arithmetic number, because the mean of its divisors is an integer number (6938813905).

Almost surely, 2^13877627809 is an apocalyptic number.

It is an amenable number.

13877627809 is a deficient number, since it is larger than the sum of its proper divisors (1).

13877627809 is an equidigital number, since it uses as much as digits as its factorization.

13877627809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7112448, while the sum is 58.

The spelling of 13877627809 in words is "thirteen billion, eight hundred seventy-seven million, six hundred twenty-seven thousand, eight hundred nine".