11381971368 has 32 divisors (see below), whose sum is σ = 28844726400. Its totient is φ = 3742017408.

The previous prime is 11381971357. The next prime is 11381971369. The reversal of 11381971368 is 86317918311.

It is not an unprimeable number, because it can be changed into a prime (11381971369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3246528 + ... + 3250031.

It is an arithmetic number, because the mean of its divisors is an integer number (901397700).

Almost surely, 2^11381971368 is an apocalyptic number.

It is an amenable number.

11381971368 is an abundant number, since it is smaller than the sum of its proper divisors (17462755032).

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

11381971368 is a wasteful number, since it uses less digits than its factorization.

11381971368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6496641 (or 6496637 counting only the distinct ones).

The product of its digits is 217728, while the sum is 48.

The spelling of 11381971368 in words is "eleven billion, three hundred eighty-one million, nine hundred seventy-one thousand, three hundred sixty-eight".