27868749408 has 96 divisors (see below), whose sum is σ = 81320601600. Its totient is φ = 9285383808.

The previous prime is 27868749407. The next prime is 27868749421. The reversal of 27868749408 is 80494786872.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27868749407) 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 15 ways as a sum of consecutive naturals, for example, 2343285 + ... + 2355147.

It is an arithmetic number, because the mean of its divisors is an integer number (847089600).

Almost surely, 2^27868749408 is an apocalyptic number.

It is an amenable number.

27868749408 is an abundant number, since it is smaller than the sum of its proper divisors (53451852192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27868749408 is a wasteful number, since it uses less digits than its factorization.

27868749408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14601 (or 14587 counting only the distinct ones).

The product of its (nonzero) digits is 43352064, while the sum is 63.

The spelling of 27868749408 in words is "twenty-seven billion, eight hundred sixty-eight million, seven hundred forty-nine thousand, four hundred eight".