27539799841 has 2 divisors, whose sum is σ = 27539799842. Its totient is φ = 27539799840.

The previous prime is 27539799829. The next prime is 27539799851. The reversal of 27539799841 is 14899793572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27405147025 + 134652816 = 165545^2 + 11604^2 .

It is a cyclic number.

It is not a de Polignac number, because 27539799841 - 2²⁹ = 27002928929 is a prime.

It is not a weakly prime, because it can be changed into another prime (27539799851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13769899920 + 13769899921.

It is an arithmetic number, because the mean of its divisors is an integer number (13769899921).

Almost surely, 2^27539799841 is an apocalyptic number.

It is an amenable number.

27539799841 is a deficient number, since it is larger than the sum of its proper divisors (1).

27539799841 is an equidigital number, since it uses as much as digits as its factorization.

27539799841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34292160, while the sum is 64.

The spelling of 27539799841 in words is "twenty-seven billion, five hundred thirty-nine million, seven hundred ninety-nine thousand, eight hundred forty-one".