12438083541236 has 6 divisors (see below), whose sum is σ = 21766646197170. Its totient is φ = 6219041770616.

The previous prime is 12438083541203. The next prime is 12438083541241. The reversal of 12438083541236 is 63214538083421.

It can be written as a sum of positive squares in only one way, i.e., 6933710641636 + 5504372899600 = 2633194^2 + 2346140^2 .

It is a super-2 number, since 2×12438083541236² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1554760442651 + ... + 1554760442658.

It is an arithmetic number, because the mean of its divisors is an integer number (3627774366195).

Almost surely, 2^{12438083541236} is an apocalyptic number.

It is an amenable number.

12438083541236 is a deficient number, since it is larger than the sum of its proper divisors (9328562655934).

12438083541236 is a wasteful number, since it uses less digits than its factorization.

12438083541236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3109520885313 (or 3109520885311 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 50.

The spelling of 12438083541236 in words is "twelve trillion, four hundred thirty-eight billion, eighty-three million, five hundred forty-one thousand, two hundred thirty-six".