27840538136 has 16 divisors (see below), whose sum is σ = 52203703200. Its totient is φ = 13919550624.

The previous prime is 27840538133. The next prime is 27840538147. The reversal of 27840538136 is 63183504872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27840538133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97985 + ... + 255503.

It is an arithmetic number, because the mean of its divisors is an integer number (3262731450).

Almost surely, 2^27840538136 is an apocalyptic number.

It is an amenable number.

27840538136 is a deficient number, since it is larger than the sum of its proper divisors (24363165064).

27840538136 is a wasteful number, since it uses less digits than its factorization.

27840538136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179618 (or 179614 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 27840538136 in words is "twenty-seven billion, eight hundred forty million, five hundred thirty-eight thousand, one hundred thirty-six".