11288317836 has 24 divisors (see below), whose sum is σ = 26378564464. Its totient is φ = 3757178880.

The previous prime is 11288317811. The next prime is 11288317871. The reversal of 11288317836 is 63871388211.

It is a happy number.

It is a super-2 number, since 2×11288317836² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 690805 + ... + 706956.

Almost surely, 2^11288317836 is an apocalyptic number.

It is an amenable number.

11288317836 is an abundant number, since it is smaller than the sum of its proper divisors (15090246628).

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

11288317836 is a wasteful number, since it uses less digits than its factorization.

11288317836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398441 (or 1398439 counting only the distinct ones).

The product of its digits is 387072, while the sum is 48.

The spelling of 11288317836 in words is "eleven billion, two hundred eighty-eight million, three hundred seventeen thousand, eight hundred thirty-six".