27019372544009 has 2 divisors, whose sum is σ = 27019372544010. Its totient is φ = 27019372544008.

The previous prime is 27019372543967. The next prime is 27019372544011. The reversal of 27019372544009 is 90044527391072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25495147729984 + 1524224814025 = 5049272^2 + 1234595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27019372544009 is a prime.

Together with 27019372544011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27019372544029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13509686272004 + 13509686272005.

It is an arithmetic number, because the mean of its divisors is an integer number (13509686272005).

Almost surely, 2^{27019372544009} is an apocalyptic number.

It is an amenable number.

27019372544009 is a deficient number, since it is larger than the sum of its proper divisors (1).

27019372544009 is an equidigital number, since it uses as much as digits as its factorization.

27019372544009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 27019372544009 in words is "twenty-seven trillion, nineteen billion, three hundred seventy-two million, five hundred forty-four thousand, nine".