27627419161 has 2 divisors, whose sum is σ = 27627419162. Its totient is φ = 27627419160.

The previous prime is 27627419159. The next prime is 27627419227. The reversal of 27627419161 is 16191472672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27202234761 + 425184400 = 164931^2 + 20620^2 .

It is a cyclic number.

It is not a de Polignac number, because 27627419161 - 2¹ = 27627419159 is a prime.

Together with 27627419159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (27627419101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13813709580 + 13813709581.

It is an arithmetic number, because the mean of its divisors is an integer number (13813709581).

Almost surely, 2^27627419161 is an apocalyptic number.

It is an amenable number.

27627419161 is a deficient number, since it is larger than the sum of its proper divisors (1).

27627419161 is an equidigital number, since it uses as much as digits as its factorization.

27627419161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 46.

The spelling of 27627419161 in words is "twenty-seven billion, six hundred twenty-seven million, four hundred nineteen thousand, one hundred sixty-one".