27485731241 has 2 divisors, whose sum is σ = 27485731242. Its totient is φ = 27485731240.

The previous prime is 27485731187. The next prime is 27485731243. The reversal of 27485731241 is 14213758472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27226650025 + 259081216 = 165005^2 + 16096^2 .

It is a cyclic number.

It is not a de Polignac number, because 27485731241 - 2¹⁸ = 27485469097 is a prime.

Together with 27485731243, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 27485731192 and 27485731201.

It is not a weakly prime, because it can be changed into another prime (27485731243) 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, 13742865620 + 13742865621.

It is an arithmetic number, because the mean of its divisors is an integer number (13742865621).

Almost surely, 2^27485731241 is an apocalyptic number.

It is an amenable number.

27485731241 is a deficient number, since it is larger than the sum of its proper divisors (1).

27485731241 is an equidigital number, since it uses as much as digits as its factorization.

27485731241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 376320, while the sum is 44.

The spelling of 27485731241 in words is "twenty-seven billion, four hundred eighty-five million, seven hundred thirty-one thousand, two hundred forty-one".