11568753728 has 56 divisors (see below), whose sum is σ = 26248839552. Its totient is φ = 4955664384.

The previous prime is 11568753727. The next prime is 11568753731. The reversal of 11568753728 is 82735786511.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×11568753728² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11568753728.

It is not an unprimeable number, because it can be changed into a prime (11568753727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1188176 + ... + 1197872.

Almost surely, 2^11568753728 is an apocalyptic number.

It is an amenable number.

11568753728 is an abundant number, since it is smaller than the sum of its proper divisors (14680085824).

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

11568753728 is an equidigital number, since it uses as much as digits as its factorization.

11568753728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12379 (or 12369 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 53.

The spelling of 11568753728 in words is "eleven billion, five hundred sixty-eight million, seven hundred fifty-three thousand, seven hundred twenty-eight".