27947289848 has 32 divisors (see below), whose sum is σ = 55214749200. Its totient is φ = 13224840192.

The previous prime is 27947289841. The next prime is 27947289863. The reversal of 27947289848 is 84898274972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27947289841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59336 + ... + 243752.

Almost surely, 2^27947289848 is an apocalyptic number.

It is an amenable number.

27947289848 is a deficient number, since it is larger than the sum of its proper divisors (27267459352).

27947289848 is a wasteful number, since it uses less digits than its factorization.

27947289848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185439 (or 185435 counting only the distinct ones).

The product of its digits is 130056192, while the sum is 68.

The spelling of 27947289848 in words is "twenty-seven billion, nine hundred forty-seven million, two hundred eighty-nine thousand, eight hundred forty-eight".