27140139641 has 2 divisors, whose sum is σ = 27140139642. Its totient is φ = 27140139640.

The previous prime is 27140139629. The next prime is 27140139701. The reversal of 27140139641 is 14693104172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18643171600 + 8496968041 = 136540^2 + 92179^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27140139641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27140139595 and 27140139604.

It is not a weakly prime, because it can be changed into another prime (27146139641) 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, 13570069820 + 13570069821.

It is an arithmetic number, because the mean of its divisors is an integer number (13570069821).

Almost surely, 2^27140139641 is an apocalyptic number.

It is an amenable number.

27140139641 is a deficient number, since it is larger than the sum of its proper divisors (1).

27140139641 is an equidigital number, since it uses as much as digits as its factorization.

27140139641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 27140139641 in words is "twenty-seven billion, one hundred forty million, one hundred thirty-nine thousand, six hundred forty-one".