27997183328 has 48 divisors (see below), whose sum is σ = 55421301600. Its totient is φ = 13922128896.

The previous prime is 27997183327. The next prime is 27997183349. The reversal of 27997183328 is 82338179972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27997183321) 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, 5306900 + ... + 5312172.

It is an arithmetic number, because the mean of its divisors is an integer number (1154610450).

Almost surely, 2^27997183328 is an apocalyptic number.

It is an amenable number.

27997183328 is a deficient number, since it is larger than the sum of its proper divisors (27424118272).

27997183328 is a wasteful number, since it uses less digits than its factorization.

27997183328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6159 (or 6151 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 59.

The spelling of 27997183328 in words is "twenty-seven billion, nine hundred ninety-seven million, one hundred eighty-three thousand, three hundred twenty-eight".