27108473160961 has 2 divisors, whose sum is σ = 27108473160962. Its totient is φ = 27108473160960.

The previous prime is 27108473160953. The next prime is 27108473161027. The reversal of 27108473160961 is 16906137480172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26661928463361 + 446544697600 = 5163519^2 + 668240^2 .

It is a cyclic number.

It is not a de Polignac number, because 27108473160961 - 2³ = 27108473160953 is a prime.

It is not a weakly prime, because it can be changed into another prime (27108473160361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13554236580480 + 13554236580481.

It is an arithmetic number, because the mean of its divisors is an integer number (13554236580481).

Almost surely, 2^{27108473160961} is an apocalyptic number.

It is an amenable number.

27108473160961 is a deficient number, since it is larger than the sum of its proper divisors (1).

27108473160961 is an equidigital number, since it uses as much as digits as its factorization.

27108473160961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The spelling of 27108473160961 in words is "twenty-seven trillion, one hundred eight billion, four hundred seventy-three million, one hundred sixty thousand, nine hundred sixty-one".