27878247441 has 16 divisors (see below), whose sum is σ = 45055753920. Its totient is φ = 16895907360.

The previous prime is 27878247427. The next prime is 27878247451. The reversal of 27878247441 is 14474287872.

27878247441 is a `hidden beast` number, since 2 + 7 + 87 + 82 + 47 + 441 = 666.

It is not a de Polignac number, because 27878247441 - 2⁶ = 27878247377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27878247451) 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 15 ways as a sum of consecutive naturals, for example, 46932780 + ... + 46933373.

It is an arithmetic number, because the mean of its divisors is an integer number (2815984620).

Almost surely, 2^27878247441 is an apocalyptic number.

It is an amenable number.

27878247441 is a deficient number, since it is larger than the sum of its proper divisors (17177506479).

27878247441 is a wasteful number, since it uses less digits than its factorization.

27878247441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93866173 (or 93866167 counting only the distinct ones).

The product of its digits is 5619712, while the sum is 54.

The spelling of 27878247441 in words is "twenty-seven billion, eight hundred seventy-eight million, two hundred forty-seven thousand, four hundred forty-one".