27459678361 has 2 divisors, whose sum is σ = 27459678362. Its totient is φ = 27459678360.

The previous prime is 27459678319. The next prime is 27459678397. The reversal of 27459678361 is 16387695472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26943252736 + 516425625 = 164144^2 + 22725^2 .

It is a cyclic number.

It is not a de Polignac number, because 27459678361 - 2⁹ = 27459677849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27459678296 and 27459678305.

It is not a weakly prime, because it can be changed into another prime (27459673361) 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, 13729839180 + 13729839181.

It is an arithmetic number, because the mean of its divisors is an integer number (13729839181).

Almost surely, 2^27459678361 is an apocalyptic number.

It is an amenable number.

27459678361 is a deficient number, since it is larger than the sum of its proper divisors (1).

27459678361 is an equidigital number, since it uses as much as digits as its factorization.

27459678361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15240960, while the sum is 58.

The spelling of 27459678361 in words is "twenty-seven billion, four hundred fifty-nine million, six hundred seventy-eight thousand, three hundred sixty-one".