11381481784 has 16 divisors (see below), whose sum is σ = 21372968520. Its totient is φ = 5682023520.

The previous prime is 11381481773. The next prime is 11381481817. The reversal of 11381481784 is 48718418311.

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, 1084122 + ... + 1094569.

Almost surely, 2^11381481784 is an apocalyptic number.

It is an amenable number.

11381481784 is a deficient number, since it is larger than the sum of its proper divisors (9991486736).

11381481784 is a wasteful number, since it uses less digits than its factorization.

11381481784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179350 (or 2179346 counting only the distinct ones).

The product of its digits is 172032, while the sum is 46.

The spelling of 11381481784 in words is "eleven billion, three hundred eighty-one million, four hundred eighty-one thousand, seven hundred eighty-four".