11288081268 has 30 divisors (see below), whose sum is σ = 29509275026. Its totient is φ = 3762693648.

The previous prime is 11288081261. The next prime is 11288081269. The reversal of 11288081268 is 86218088211.

It can be written as a sum of positive squares in only one way, i.e., 11282263524 + 5817744 = 106218^2 + 2412^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11288081261) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 17419555 + ... + 17420202.

Almost surely, 2^11288081268 is an apocalyptic number.

11288081268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11288081268 is an abundant number, since it is smaller than the sum of its proper divisors (18221193758).

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

11288081268 is a wasteful number, since it uses less digits than its factorization.

11288081268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34839773 (or 34839762 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 45.

The spelling of 11288081268 in words is "eleven billion, two hundred eighty-eight million, eighty-one thousand, two hundred sixty-eight".