11388117568 has 56 divisors (see below), whose sum is σ = 22963745792. Its totient is φ = 5602189824.

The previous prime is 11388117563. The next prime is 11388117569. The reversal of 11388117568 is 86571188311.

It is not an unprimeable number, because it can be changed into a prime (11388117563) 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, 6847105 + ... + 6848767.

Almost surely, 2^11388117568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11388117568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11481872896).

11388117568 is an abundant number, since it is smaller than the sum of its proper divisors (11575628224).

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

11388117568 is a wasteful number, since it uses less digits than its factorization.

11388117568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339 (or 3329 counting only the distinct ones).

The product of its digits is 322560, while the sum is 49.

The spelling of 11388117568 in words is "eleven billion, three hundred eighty-eight million, one hundred seventeen thousand, five hundred sixty-eight".