27709930349 has 2 divisors, whose sum is σ = 27709930350. Its totient is φ = 27709930348.

The previous prime is 27709930321. The next prime is 27709930357. The reversal of 27709930349 is 94303990772.

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., 16379392324 + 11330538025 = 127982^2 + 106445^2 .

It is a cyclic number.

It is not a de Polignac number, because 27709930349 - 2⁸ = 27709930093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27709930349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27709960349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13854965174 + 13854965175.

It is an arithmetic number, because the mean of its divisors is an integer number (13854965175).

Almost surely, 2^27709930349 is an apocalyptic number.

It is an amenable number.

27709930349 is a deficient number, since it is larger than the sum of its proper divisors (1).

27709930349 is an equidigital number, since it uses as much as digits as its factorization.

27709930349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2571912, while the sum is 53.

The spelling of 27709930349 in words is "twenty-seven billion, seven hundred nine million, nine hundred thirty thousand, three hundred forty-nine".