27502639841 has 2 divisors, whose sum is σ = 27502639842. Its totient is φ = 27502639840.

The previous prime is 27502639817. The next prime is 27502639847. The reversal of 27502639841 is 14893620572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27488313616 + 14326225 = 165796^2 + 3785^2 .

It is a cyclic number.

It is not a de Polignac number, because 27502639841 - 2⁶ = 27502639777 is a prime.

It is not a weakly prime, because it can be changed into another prime (27502639847) 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, 13751319920 + 13751319921.

It is an arithmetic number, because the mean of its divisors is an integer number (13751319921).

It is a 1-persistent number, because it is pandigital, but 2⋅27502639841 = 55005279682 is not.

Almost surely, 2^27502639841 is an apocalyptic number.

It is an amenable number.

27502639841 is a deficient number, since it is larger than the sum of its proper divisors (1).

27502639841 is an equidigital number, since it uses as much as digits as its factorization.

27502639841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 27502639841 in words is "twenty-seven billion, five hundred two million, six hundred thirty-nine thousand, eight hundred forty-one".