12386281430644 has 24 divisors (see below), whose sum is σ = 23734442642400. Its totient is φ = 5609198074080.

The previous prime is 12386281430623. The next prime is 12386281430647. The reversal of 12386281430644 is 44603418268321.

It is a junction number, because it is equal to n+sod(n) for n = 12386281430591 and 12386281430600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12386281430647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523234254 + ... + 523257925.

It is an arithmetic number, because the mean of its divisors is an integer number (988935110100).

Almost surely, 2^{12386281430644} is an apocalyptic number.

It is an amenable number.

12386281430644 is a deficient number, since it is larger than the sum of its proper divisors (11348161211756).

12386281430644 is a wasteful number, since it uses less digits than its factorization.

12386281430644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046492463 (or 1046492461 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 52.

Adding to 12386281430644 its reverse (44603418268321), we get a palindrome (56989699698965).

The spelling of 12386281430644 in words is "twelve trillion, three hundred eighty-six billion, two hundred eighty-one million, four hundred thirty thousand, six hundred forty-four".