27808011276 has 48 divisors (see below), whose sum is σ = 65546417664. Its totient is φ = 9174986496.

The previous prime is 27808011263. The next prime is 27808011277. The reversal of 27808011276 is 67211080872.

It is a super-2 number, since 2×27808011276² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27808011277) 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, 3564436 + ... + 3572228.

It is an arithmetic number, because the mean of its divisors is an integer number (1365550368).

Almost surely, 2^27808011276 is an apocalyptic number.

It is an amenable number.

27808011276 is an abundant number, since it is smaller than the sum of its proper divisors (37738406388).

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

27808011276 is a wasteful number, since it uses less digits than its factorization.

27808011276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10790 (or 10788 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 42.

The spelling of 27808011276 in words is "twenty-seven billion, eight hundred eight million, eleven thousand, two hundred seventy-six".