11784573648 has 30 divisors (see below), whose sum is σ = 32980439154. Its totient is φ = 3928191168.

The previous prime is 11784573643. The next prime is 11784573659. The reversal of 11784573648 is 84637548711.

11784573648 is a `hidden beast` number, since 1 + 1 + 7 + 8 + 4 + 573 + 64 + 8 = 666.

11784573648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11472980544 + 311593104 = 107112^2 + 17652^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11784573594 and 11784573603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11784573643) 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 5 ways as a sum of consecutive naturals, for example, 40918515 + ... + 40918802.

Almost surely, 2^11784573648 is an apocalyptic number.

11784573648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11784573648 is an abundant number, since it is smaller than the sum of its proper divisors (21195865506).

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

11784573648 is a wasteful number, since it uses less digits than its factorization.

11784573648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81837331 (or 81837322 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The spelling of 11784573648 in words is "eleven billion, seven hundred eighty-four million, five hundred seventy-three thousand, six hundred forty-eight".