27041709221 has 2 divisors, whose sum is σ = 27041709222. Its totient is φ = 27041709220.

The previous prime is 27041709197. The next prime is 27041709263. The reversal of 27041709221 is 12290714072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13950916996 + 13090792225 = 118114^2 + 114415^2 .

It is a cyclic number.

It is not a de Polignac number, because 27041709221 - 2⁶ = 27041709157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27041709281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13520854610 + 13520854611.

It is an arithmetic number, because the mean of its divisors is an integer number (13520854611).

Almost surely, 2^27041709221 is an apocalyptic number.

It is an amenable number.

27041709221 is a deficient number, since it is larger than the sum of its proper divisors (1).

27041709221 is an equidigital number, since it uses as much as digits as its factorization.

27041709221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 35.

The spelling of 27041709221 in words is "twenty-seven billion, forty-one million, seven hundred nine thousand, two hundred twenty-one".