27889968848 has 40 divisors (see below), whose sum is σ = 61831602048. Its totient is φ = 11938280832.

The previous prime is 27889968833. The next prime is 27889968877. The reversal of 27889968848 is 84886998872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59111 + ... + 243462.

Almost surely, 2^27889968848 is an apocalyptic number.

27889968848 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27889968848 is an abundant number, since it is smaller than the sum of its proper divisors (33941633200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27889968848 is a wasteful number, since it uses less digits than its factorization.

27889968848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303411 (or 303405 counting only the distinct ones).

The product of its digits is 891813888, while the sum is 77.

The spelling of 27889968848 in words is "twenty-seven billion, eight hundred eighty-nine million, nine hundred sixty-eight thousand, eight hundred forty-eight".