27916514808 has 128 divisors (see below), whose sum is σ = 87650304000. Its totient is φ = 7362569088.

The previous prime is 27916514777. The next prime is 27916514863. The reversal of 27916514808 is 80841561972.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23416 + ... + 237447.

It is an arithmetic number, because the mean of its divisors is an integer number (684768000).

Almost surely, 2^27916514808 is an apocalyptic number.

27916514808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27916514808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43825152000).

27916514808 is an abundant number, since it is smaller than the sum of its proper divisors (59733789192).

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

27916514808 is a wasteful number, since it uses less digits than its factorization.

27916514808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260906 (or 260888 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 27916514808 in words is "twenty-seven billion, nine hundred sixteen million, five hundred fourteen thousand, eight hundred eight".