27275272897 has 2 divisors, whose sum is σ = 27275272898. Its totient is φ = 27275272896.

The previous prime is 27275272891. The next prime is 27275272933. The reversal of 27275272897 is 79827257272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14758362256 + 12516910641 = 121484^2 + 111879^2 .

It is a cyclic number.

It is not a de Polignac number, because 27275272897 - 2²³ = 27266884289 is a prime.

It is not a weakly prime, because it can be changed into another prime (27275272891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13637636448 + 13637636449.

It is an arithmetic number, because the mean of its divisors is an integer number (13637636449).

Almost surely, 2^27275272897 is an apocalyptic number.

It is an amenable number.

27275272897 is a deficient number, since it is larger than the sum of its proper divisors (1).

27275272897 is an equidigital number, since it uses as much as digits as its factorization.

27275272897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13829760, while the sum is 58.

The spelling of 27275272897 in words is "twenty-seven billion, two hundred seventy-five million, two hundred seventy-two thousand, eight hundred ninety-seven".