27248633281 has 4 divisors (see below), whose sum is σ = 27269939200. Its totient is φ = 27227327364.

The previous prime is 27248633263. The next prime is 27248633299. The reversal of 27248633281 is 18233684272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (27248633263) and next prime (27248633299).

It is a cyclic number.

It is not a de Polignac number, because 27248633281 - 2¹⁵ = 27248600513 is a prime.

It is a super-2 number, since 2×27248633281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27248633201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10651041 + ... + 10653598.

It is an arithmetic number, because the mean of its divisors is an integer number (6817484800).

Almost surely, 2^27248633281 is an apocalyptic number.

It is an amenable number.

27248633281 is a deficient number, since it is larger than the sum of its proper divisors (21305919).

27248633281 is a wasteful number, since it uses less digits than its factorization.

27248633281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21305918.

The product of its digits is 774144, while the sum is 46.

The spelling of 27248633281 in words is "twenty-seven billion, two hundred forty-eight million, six hundred thirty-three thousand, two hundred eighty-one".