27849811556 has 24 divisors (see below), whose sum is σ = 58121347200. Its totient is φ = 11416692672.

The previous prime is 27849811531. The next prime is 27849811567. The reversal of 27849811556 is 65511894872.

It is a super-3 number, since 3×27849811556³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21621881 + ... + 21623168.

It is an arithmetic number, because the mean of its divisors is an integer number (2421722800).

Almost surely, 2^27849811556 is an apocalyptic number.

It is an amenable number.

27849811556 is an abundant number, since it is smaller than the sum of its proper divisors (30271535644).

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

27849811556 is a wasteful number, since it uses less digits than its factorization.

27849811556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43245083 (or 43245081 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 56.

The spelling of 27849811556 in words is "twenty-seven billion, eight hundred forty-nine million, eight hundred eleven thousand, five hundred fifty-six".