11391273368 has 16 divisors (see below), whose sum is σ = 22615028280. Its totient is φ = 5360599168.

The previous prime is 11391273353. The next prime is 11391273371. The reversal of 11391273368 is 86337219311.

It is a super-2 number, since 2×11391273368² (a number of 21 digits) contains 22 as substring.

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, 41879546 + ... + 41879817.

Almost surely, 2^11391273368 is an apocalyptic number.

It is an amenable number.

11391273368 is a deficient number, since it is larger than the sum of its proper divisors (11223754912).

11391273368 is a wasteful number, since it uses less digits than its factorization.

11391273368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83759386 (or 83759382 counting only the distinct ones).

The product of its digits is 163296, while the sum is 44.

The spelling of 11391273368 in words is "eleven billion, three hundred ninety-one million, two hundred seventy-three thousand, three hundred sixty-eight".