27605926906 has 32 divisors (see below), whose sum is σ = 43488738000. Its totient is φ = 13125353472.

The previous prime is 27605926897. The next prime is 27605926913. The reversal of 27605926906 is 60962950672.

It can be written as a sum of positive squares in 8 ways, for example, as 15089911281 + 12516015625 = 122841^2 + 111875^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1316230 + ... + 1337038.

Almost surely, 2^27605926906 is an apocalyptic number.

27605926906 is a deficient number, since it is larger than the sum of its proper divisors (15882811094).

27605926906 is a wasteful number, since it uses less digits than its factorization.

27605926906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21186.

The product of its (nonzero) digits is 2449440, while the sum is 52.

The spelling of 27605926906 in words is "twenty-seven billion, six hundred five million, nine hundred twenty-six thousand, nine hundred six".