27896669872 has 20 divisors (see below), whose sum is σ = 54078744096. Its totient is φ = 13940864960.

The previous prime is 27896669863. The next prime is 27896669891.

27896669872 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, 436003 + ... + 495874.

Almost surely, 2^27896669872 is an apocalyptic number.

It is an amenable number.

27896669872 is a deficient number, since it is larger than the sum of its proper divisors (26182074224).

27896669872 is a wasteful number, since it uses less digits than its factorization.

27896669872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933756 (or 933750 counting only the distinct ones).

The product of its digits is 219469824, while the sum is 70.

The spelling of 27896669872 in words is "twenty-seven billion, eight hundred ninety-six million, six hundred sixty-nine thousand, eight hundred seventy-two".