27696608587 has 4 divisors (see below), whose sum is σ = 27700826296. Its totient is φ = 27692390880.

The previous prime is 27696608551. The next prime is 27696608591. The reversal of 27696608587 is 78580669672.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27696608587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27696608087) 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, 2098989 + ... + 2112142.

It is an arithmetic number, because the mean of its divisors is an integer number (6925206574).

Almost surely, 2^27696608587 is an apocalyptic number.

27696608587 is a deficient number, since it is larger than the sum of its proper divisors (4217709).

27696608587 is an equidigital number, since it uses as much as digits as its factorization.

27696608587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4217708.

The product of its (nonzero) digits is 60963840, while the sum is 64.

The spelling of 27696608587 in words is "twenty-seven billion, six hundred ninety-six million, six hundred eight thousand, five hundred eighty-seven".