27280808218 has 8 divisors (see below), whose sum is σ = 40969988640. Its totient is φ = 13624145340.

The previous prime is 27280808213. The next prime is 27280808221. The reversal of 27280808218 is 81280808272.

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

It is not an unprimeable number, because it can be changed into a prime (27280808213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8127288 + ... + 8130643.

It is an arithmetic number, because the mean of its divisors is an integer number (5121248580).

Almost surely, 2^27280808218 is an apocalyptic number.

27280808218 is a deficient number, since it is larger than the sum of its proper divisors (13689180422).

27280808218 is a wasteful number, since it uses less digits than its factorization.

27280808218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16258772.

The product of its (nonzero) digits is 229376, while the sum is 46.

The spelling of 27280808218 in words is "twenty-seven billion, two hundred eighty million, eight hundred eight thousand, two hundred eighteen".