27725276617 has 4 divisors (see below), whose sum is σ = 27726150096. Its totient is φ = 27724403140.

The previous prime is 27725276611. The next prime is 27725276627. The reversal of 27725276617 is 71667252772.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27725276617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27725276611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387259 + ... + 453232.

It is an arithmetic number, because the mean of its divisors is an integer number (6931537524).

Almost surely, 2^27725276617 is an apocalyptic number.

It is an amenable number.

27725276617 is a deficient number, since it is larger than the sum of its proper divisors (873479).

27725276617 is an equidigital number, since it uses as much as digits as its factorization.

27725276617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873478.

The product of its digits is 3457440, while the sum is 52.

The spelling of 27725276617 in words is "twenty-seven billion, seven hundred twenty-five million, two hundred seventy-six thousand, six hundred seventeen".