27111040897 has 2 divisors, whose sum is σ = 27111040898. Its totient is φ = 27111040896.

The previous prime is 27111040883. The next prime is 27111040919. The reversal of 27111040897 is 79804011172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26246916081 + 864124816 = 162009^2 + 29396^2 .

It is a cyclic number.

It is not a de Polignac number, because 27111040897 - 2¹¹ = 27111038849 is a prime.

It is not a weakly prime, because it can be changed into another prime (27111040807) 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, 13555520448 + 13555520449.

It is an arithmetic number, because the mean of its divisors is an integer number (13555520449).

Almost surely, 2^27111040897 is an apocalyptic number.

It is an amenable number.

27111040897 is a deficient number, since it is larger than the sum of its proper divisors (1).

27111040897 is an equidigital number, since it uses as much as digits as its factorization.

27111040897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 40.

The spelling of 27111040897 in words is "twenty-seven billion, one hundred eleven million, forty thousand, eight hundred ninety-seven".