27895787811 has 12 divisors (see below), whose sum is σ = 40296176440. Its totient is φ = 18596148480.

The previous prime is 27895787771. The next prime is 27895787863. The reversal of 27895787811 is 11878759872.

It is not a de Polignac number, because 27895787811 - 2⁹ = 27895787299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27895787111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104580 + ... + 258318.

Almost surely, 2^27895787811 is an apocalyptic number.

27895787811 is a deficient number, since it is larger than the sum of its proper divisors (12400388629).

27895787811 is a wasteful number, since it uses less digits than its factorization.

27895787811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173906 (or 173903 counting only the distinct ones).

The product of its digits is 15805440, while the sum is 63.

The spelling of 27895787811 in words is "twenty-seven billion, eight hundred ninety-five million, seven hundred eighty-seven thousand, eight hundred eleven".