11409423784 has 32 divisors (see below), whose sum is σ = 23349047040. Its totient is φ = 5183526400.

The previous prime is 11409423757. The next prime is 11409423787. The reversal of 11409423784 is 48732490411.

11409423784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11409423784.

It is not an unprimeable number, because it can be changed into a prime (11409423787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151977 + ... + 214279.

It is an arithmetic number, because the mean of its divisors is an integer number (729657720).

Almost surely, 2^11409423784 is an apocalyptic number.

It is an amenable number.

11409423784 is an abundant number, since it is smaller than the sum of its proper divisors (11939623256).

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

11409423784 is a wasteful number, since it uses less digits than its factorization.

11409423784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64401 (or 64397 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 11409423784 in words is "eleven billion, four hundred nine million, four hundred twenty-three thousand, seven hundred eighty-four".