27176081749 has 2 divisors, whose sum is σ = 27176081750. Its totient is φ = 27176081748.

The previous prime is 27176081719. The next prime is 27176081753. The reversal of 27176081749 is 94718067172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26209991025 + 966090724 = 161895^2 + 31082^2 .

It is a cyclic number.

It is not a de Polignac number, because 27176081749 - 2⁹ = 27176081237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27176081696 and 27176081705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27176081719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13588040874 + 13588040875.

It is an arithmetic number, because the mean of its divisors is an integer number (13588040875).

Almost surely, 2^27176081749 is an apocalyptic number.

It is an amenable number.

27176081749 is a deficient number, since it is larger than the sum of its proper divisors (1).

27176081749 is an equidigital number, since it uses as much as digits as its factorization.

27176081749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1185408, while the sum is 52.

The spelling of 27176081749 in words is "twenty-seven billion, one hundred seventy-six million, eighty-one thousand, seven hundred forty-nine".