11568254681 has 4 divisors (see below), whose sum is σ = 11572512000. Its totient is φ = 11563997364.

The previous prime is 11568254669. The next prime is 11568254701. The reversal of 11568254681 is 18645286511.

11568254681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 18645286511 = 19 ⋅981330869.

It is a cyclic number.

It is not a de Polignac number, because 11568254681 - 2²² = 11564060377 is a prime.

It is a super-2 number, since 2×11568254681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11568254641) 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 3 ways as a sum of consecutive naturals, for example, 2124581 + ... + 2130018.

It is an arithmetic number, because the mean of its divisors is an integer number (2893128000).

Almost surely, 2^11568254681 is an apocalyptic number.

It is an amenable number.

11568254681 is a deficient number, since it is larger than the sum of its proper divisors (4257319).

11568254681 is an equidigital number, since it uses as much as digits as its factorization.

11568254681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4257318.

The product of its digits is 460800, while the sum is 47.

The spelling of 11568254681 in words is "eleven billion, five hundred sixty-eight million, two hundred fifty-four thousand, six hundred eighty-one".