27704729417 has 4 divisors (see below), whose sum is σ = 27709261716. Its totient is φ = 27700197120.

The previous prime is 27704729411. The next prime is 27704729431. The reversal of 27704729417 is 71492740772.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2391601216 + 25313128201 = 48904^2 + 159101^2 .

It is a cyclic number.

It is not a de Polignac number, because 27704729417 - 2⁴ = 27704729401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27704729411) 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 in 3 ways as a sum of consecutive naturals, for example, 2256968 + ... + 2269209.

It is an arithmetic number, because the mean of its divisors is an integer number (6927315429).

Almost surely, 2^27704729417 is an apocalyptic number.

It is an amenable number.

27704729417 is a deficient number, since it is larger than the sum of its proper divisors (4532299).

27704729417 is an equidigital number, since it uses as much as digits as its factorization.

27704729417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4532298.

The product of its (nonzero) digits is 1382976, while the sum is 50.

The spelling of 27704729417 in words is "twenty-seven billion, seven hundred four million, seven hundred twenty-nine thousand, four hundred seventeen".