11388068672 has 28 divisors (see below), whose sum is σ = 22884262080. Its totient is φ = 5621955456.

The previous prime is 11388068663. The next prime is 11388068689. The reversal of 11388068672 is 27686088311.

It is a self number, because there is not a number n which added to its sum of digits gives 11388068672.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1121138 + ... + 1131249.

Almost surely, 2^11388068672 is an apocalyptic number.

It is an amenable number.

11388068672 is an abundant number, since it is smaller than the sum of its proper divisors (11496193408).

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

11388068672 is an equidigital number, since it uses as much as digits as its factorization.

11388068672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252478 (or 2252468 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 11388068672 in words is "eleven billion, three hundred eighty-eight million, sixty-eight thousand, six hundred seventy-two".