27873641887 has 8 divisors (see below), whose sum is σ = 34306020896. Its totient is φ = 22053870432.

The previous prime is 27873641869. The next prime is 27873641893. The reversal of 27873641887 is 78814637872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27873641887 - 2²⁷ = 27739424159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27873641837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153151788 + ... + 153151969.

It is an arithmetic number, because the mean of its divisors is an integer number (4288252612).

Almost surely, 2^27873641887 is an apocalyptic number.

27873641887 is a deficient number, since it is larger than the sum of its proper divisors (6432379009).

27873641887 is a wasteful number, since it uses less digits than its factorization.

27873641887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306303777.

The product of its digits is 25288704, while the sum is 61.

The spelling of 27873641887 in words is "twenty-seven billion, eight hundred seventy-three million, six hundred forty-one thousand, eight hundred eighty-seven".