27806660872 has 16 divisors (see below), whose sum is σ = 52482772800. Its totient is φ = 13811254800.

The previous prime is 27806660867. The next prime is 27806660969.

27806660872 is nontrivially palindromic in base 10.

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 3 ways as a sum of consecutive naturals, for example, 11508172 + ... + 11510587.

It is an arithmetic number, because the mean of its divisors is an integer number (3280173300).

Almost surely, 2^27806660872 is an apocalyptic number.

It is an amenable number.

27806660872 is a deficient number, since it is larger than the sum of its proper divisors (24676111928).

27806660872 is a wasteful number, since it uses less digits than its factorization.

27806660872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23018916 (or 23018912 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 27806660872 in words is "twenty-seven billion, eight hundred six million, six hundred sixty thousand, eight hundred seventy-two".