27034333661 has 2 divisors, whose sum is σ = 27034333662. Its totient is φ = 27034333660.

The previous prime is 27034333643. The next prime is 27034333681. The reversal of 27034333661 is 16633343072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20873025625 + 6161308036 = 144475^2 + 78494^2 .

It is a cyclic number.

It is not a de Polignac number, because 27034333661 - 2³⁰ = 25960591837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27034333681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13517166830 + 13517166831.

It is an arithmetic number, because the mean of its divisors is an integer number (13517166831).

Almost surely, 2^27034333661 is an apocalyptic number.

It is an amenable number.

27034333661 is a deficient number, since it is larger than the sum of its proper divisors (1).

27034333661 is an equidigital number, since it uses as much as digits as its factorization.

27034333661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 38.

The spelling of 27034333661 in words is "twenty-seven billion, thirty-four million, three hundred thirty-three thousand, six hundred sixty-one".