27419760209 has 2 divisors, whose sum is σ = 27419760210. Its totient is φ = 27419760208.

The previous prime is 27419760167. The next prime is 27419760223. The reversal of 27419760209 is 90206791472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27341614609 + 78145600 = 165353^2 + 8840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27419760209 is a prime.

It is not a weakly prime, because it can be changed into another prime (27419760229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13709880104 + 13709880105.

It is an arithmetic number, because the mean of its divisors is an integer number (13709880105).

Almost surely, 2^27419760209 is an apocalyptic number.

It is an amenable number.

27419760209 is a deficient number, since it is larger than the sum of its proper divisors (1).

27419760209 is an equidigital number, since it uses as much as digits as its factorization.

27419760209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 27419760209 in words is "twenty-seven billion, four hundred nineteen million, seven hundred sixty thousand, two hundred nine".