27592262561 has 2 divisors, whose sum is σ = 27592262562. Its totient is φ = 27592262560.

The previous prime is 27592262519. The next prime is 27592262609. The reversal of 27592262561 is 16526229572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19423718161 + 8168544400 = 139369^2 + 90380^2 .

It is a cyclic number.

It is not a de Polignac number, because 27592262561 - 2¹⁰ = 27592261537 is a prime.

It is a super-2 number, since 2×27592262561² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27592262161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13796131280 + 13796131281.

It is an arithmetic number, because the mean of its divisors is an integer number (13796131281).

Almost surely, 2^27592262561 is an apocalyptic number.

It is an amenable number.

27592262561 is a deficient number, since it is larger than the sum of its proper divisors (1).

27592262561 is an equidigital number, since it uses as much as digits as its factorization.

27592262561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 47.

The spelling of 27592262561 in words is "twenty-seven billion, five hundred ninety-two million, two hundred sixty-two thousand, five hundred sixty-one".