27248717881 has 16 divisors (see below), whose sum is σ = 34098744960. Its totient is φ = 21153818880.

The previous prime is 27248717863. The next prime is 27248717891. The reversal of 27248717881 is 18871784272.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 27248717881 - 2⁹ = 27248717369 is a prime.

It is a super-3 number, since 3×27248717881³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (27248717831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637056 + ... + 678481.

It is an arithmetic number, because the mean of its divisors is an integer number (2131171560).

Almost surely, 2^27248717881 is an apocalyptic number.

It is an amenable number.

27248717881 is a deficient number, since it is larger than the sum of its proper divisors (6850027079).

27248717881 is a wasteful number, since it uses less digits than its factorization.

27248717881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315824.

The product of its digits is 2809856, while the sum is 55.

The spelling of 27248717881 in words is "twenty-seven billion, two hundred forty-eight million, seven hundred seventeen thousand, eight hundred eighty-one".