11181678384 has 40 divisors (see below), whose sum is σ = 28936136560. Its totient is φ = 3720757248.

The previous prime is 11181678377. The next prime is 11181678439. The reversal of 11181678384 is 48387618111.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174169 + ... + 229560.

It is an arithmetic number, because the mean of its divisors is an integer number (723403414).

Almost surely, 2^11181678384 is an apocalyptic number.

It is an amenable number.

11181678384 is an abundant number, since it is smaller than the sum of its proper divisors (17754458176).

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

11181678384 is a wasteful number, since it uses less digits than its factorization.

11181678384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404317 (or 404311 counting only the distinct ones).

The product of its digits is 258048, while the sum is 48.

The spelling of 11181678384 in words is "eleven billion, one hundred eighty-one million, six hundred seventy-eight thousand, three hundred eighty-four".