12344544136 has 32 divisors (see below), whose sum is σ = 24161321880. Its totient is φ = 5906995200.

The previous prime is 12344544119. The next prime is 12344544137. The reversal of 12344544136 is 63144544321.

It can be written as a sum of positive squares in 4 ways, for example, as 11048112100 + 1296432036 = 105110^2 + 36006^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 12344544095 and 12344544104.

It is not an unprimeable number, because it can be changed into a prime (12344544137) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 323785 + ... + 359896.

Almost surely, 2^12344544136 is an apocalyptic number.

It is an amenable number.

12344544136 is a deficient number, since it is larger than the sum of its proper divisors (11816777744).

12344544136 is a wasteful number, since it uses less digits than its factorization.

12344544136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683785 (or 683781 counting only the distinct ones).

The product of its digits is 138240, while the sum is 37.

The spelling of 12344544136 in words is "twelve billion, three hundred forty-four million, five hundred forty-four thousand, one hundred thirty-six".