27776402851297 has 2 divisors, whose sum is σ = 27776402851298. Its totient is φ = 27776402851296.

The previous prime is 27776402851289. The next prime is 27776402851361. The reversal of 27776402851297 is 79215820467772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22400872497936 + 5375530353361 = 4732956^2 + 2318519^2 .

It is a cyclic number.

It is not a de Polignac number, because 27776402851297 - 2³ = 27776402851289 is a prime.

It is a super-2 number, since 2×27776402851297² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27776402851247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13888201425648 + 13888201425649.

It is an arithmetic number, because the mean of its divisors is an integer number (13888201425649).

Almost surely, 2^{27776402851297} is an apocalyptic number.

It is an amenable number.

27776402851297 is a deficient number, since it is larger than the sum of its proper divisors (1).

27776402851297 is an equidigital number, since it uses as much as digits as its factorization.

27776402851297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165957120, while the sum is 67.

The spelling of 27776402851297 in words is "twenty-seven trillion, seven hundred seventy-six billion, four hundred two million, eight hundred fifty-one thousand, two hundred ninety-seven".