12446215442 has 8 divisors (see below), whose sum is σ = 18678300732. Its totient is φ = 6220115200.

The previous prime is 12446215427. The next prime is 12446215489. The reversal of 12446215442 is 24451264421.

It is a happy number.

12446215442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11811125041 + 635090401 = 108679^2 + 25201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1491059 + ... + 1499382.

Almost surely, 2^12446215442 is an apocalyptic number.

12446215442 is a deficient number, since it is larger than the sum of its proper divisors (6232085290).

12446215442 is a wasteful number, since it uses less digits than its factorization.

12446215442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992524.

The product of its digits is 61440, while the sum is 35.

Adding to 12446215442 its reverse (24451264421), we get a palindrome (36897479863).

The spelling of 12446215442 in words is "twelve billion, four hundred forty-six million, two hundred fifteen thousand, four hundred forty-two".