27071447009 has 2 divisors, whose sum is σ = 27071447010. Its totient is φ = 27071447008.

The previous prime is 27071446979. The next prime is 27071447021. The reversal of 27071447009 is 90074417072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14771971600 + 12299475409 = 121540^2 + 110903^2 .

It is a cyclic number.

It is not a de Polignac number, because 27071447009 - 2²⁸ = 26803011553 is a prime.

It is a super-2 number, since 2×27071447009² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27071447059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13535723504 + 13535723505.

It is an arithmetic number, because the mean of its divisors is an integer number (13535723505).

Almost surely, 2^27071447009 is an apocalyptic number.

It is an amenable number.

27071447009 is a deficient number, since it is larger than the sum of its proper divisors (1).

27071447009 is an equidigital number, since it uses as much as digits as its factorization.

27071447009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98784, while the sum is 41.

The spelling of 27071447009 in words is "twenty-seven billion, seventy-one million, four hundred forty-seven thousand, nine".