12183978052 has 12 divisors (see below), whose sum is σ = 21334537980. Its totient is φ = 6088395776.

The previous prime is 12183978041. The next prime is 12183978083. The reversal of 12183978052 is 25087938121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8352863236 + 3831114816 = 91394^2 + 61896^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12183977993 and 12183978011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 890677 + ... + 904252.

It is an arithmetic number, because the mean of its divisors is an integer number (1777878165).

Almost surely, 2^12183978052 is an apocalyptic number.

It is an amenable number.

12183978052 is a deficient number, since it is larger than the sum of its proper divisors (9150559928).

12183978052 is a wasteful number, since it uses less digits than its factorization.

12183978052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796630 (or 1796628 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 12183978052 in words is "twelve billion, one hundred eighty-three million, nine hundred seventy-eight thousand, fifty-two".