12244445678 has 8 divisors (see below), whose sum is σ = 18476649072. Its totient is φ = 6085562656.

The previous prime is 12244445617. The next prime is 12244445683. The reversal of 12244445678 is 87654444221.

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

It is a super-2 number, since 2×12244445678² (a number of 21 digits) contains 22 as substring.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18329675 + ... + 18330342.

It is an arithmetic number, because the mean of its divisors is an integer number (2309581134).

Almost surely, 2^12244445678 is an apocalyptic number.

12244445678 is a deficient number, since it is larger than the sum of its proper divisors (6232203394).

12244445678 is a wasteful number, since it uses less digits than its factorization.

12244445678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36660186.

The product of its digits is 1720320, while the sum is 47.

Adding to 12244445678 its reverse (87654444221), we get a palindrome (99898889899).

The spelling of 12244445678 in words is "twelve billion, two hundred forty-four million, four hundred forty-five thousand, six hundred seventy-eight".