11328971568 has 40 divisors (see below), whose sum is σ = 30275703600. Its totient is φ = 3646105344.

The previous prime is 11328971567. The next prime is 11328971579. The reversal of 11328971568 is 86517982311.

It is a self number, because there is not a number n which added to its sum of digits gives 11328971568.

It is not an unprimeable number, because it can be changed into a prime (11328971567) 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, 4067923 + ... + 4070706.

It is an arithmetic number, because the mean of its divisors is an integer number (756892590).

Almost surely, 2^11328971568 is an apocalyptic number.

It is an amenable number.

11328971568 is an abundant number, since it is smaller than the sum of its proper divisors (18946732032).

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

11328971568 is a wasteful number, since it uses less digits than its factorization.

11328971568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8138669 (or 8138663 counting only the distinct ones).

The product of its digits is 725760, while the sum is 51.

The spelling of 11328971568 in words is "eleven billion, three hundred twenty-eight million, nine hundred seventy-one thousand, five hundred sixty-eight".