27774104609 has 2 divisors, whose sum is σ = 27774104610. Its totient is φ = 27774104608.

The previous prime is 27774104581. The next prime is 27774104623. The reversal of 27774104609 is 90640147772.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24141390625 + 3632713984 = 155375^2 + 60272^2 .

It is a cyclic number.

It is not a de Polignac number, because 27774104609 - 2¹² = 27774100513 is a prime.

It is not a weakly prime, because it can be changed into another prime (27774104669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13887052304 + 13887052305.

It is an arithmetic number, because the mean of its divisors is an integer number (13887052305).

Almost surely, 2^27774104609 is an apocalyptic number.

It is an amenable number.

27774104609 is a deficient number, since it is larger than the sum of its proper divisors (1).

27774104609 is an equidigital number, since it uses as much as digits as its factorization.

27774104609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 592704, while the sum is 47.

The spelling of 27774104609 in words is "twenty-seven billion, seven hundred seventy-four million, one hundred four thousand, six hundred nine".