11983455438912 has 84 divisors (see below), whose sum is σ = 34442004345216. Its totient is φ = 3983600920320.

The previous prime is 11983455438841. The next prime is 11983455438931. The reversal of 11983455438912 is 21983455438911.

It is a happy number.

11983455438912 is a `hidden beast` number, since 1 + 1 + 9 + 8 + 3 + 4 + 5 + 543 + 89 + 1 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 11983455438912.

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 11 ways as a sum of consecutive naturals, for example, 28132764 + ... + 28555547.

Almost surely, 2^{11983455438912} is an apocalyptic number.

11983455438912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11983455438912 is an abundant number, since it is smaller than the sum of its proper divisors (22458548906304).

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

11983455438912 is a wasteful number, since it uses less digits than its factorization.

11983455438912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56688696 (or 56688683 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 63.

Subtracting 11983455438912 from its reverse (21983455438911), we obtain a palindrome (9999999999999).

The spelling of 11983455438912 in words is "eleven trillion, nine hundred eighty-three billion, four hundred fifty-five million, four hundred thirty-eight thousand, nine hundred twelve".