27997183329 has 16 divisors (see below), whose sum is σ = 40195362240. Its totient is φ = 17269114880.

The previous prime is 27997183327. The next prime is 27997183349. The reversal of 27997183329 is 92338179972.

It is a cyclic number.

It is not a de Polignac number, because 27997183329 - 2¹ = 27997183327 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 4649232 + ... + 4655249.

It is an arithmetic number, because the mean of its divisors is an integer number (2512210140).

Almost surely, 2^27997183329 is an apocalyptic number.

It is an amenable number.

27997183329 is a deficient number, since it is larger than the sum of its proper divisors (12198178911).

27997183329 is a wasteful number, since it uses less digits than its factorization.

27997183329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9304560.

The product of its digits is 10287648, while the sum is 60.

The spelling of 27997183329 in words is "twenty-seven billion, nine hundred ninety-seven million, one hundred eighty-three thousand, three hundred twenty-nine".