12446214178 has 16 divisors (see below), whose sum is σ = 18979874496. Its totient is φ = 6119637840.

The previous prime is 12446214139. The next prime is 12446214259. The reversal of 12446214178 is 87141264421.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12446214178.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654675 + ... + 673417.

It is an arithmetic number, because the mean of its divisors is an integer number (1186242156).

Almost surely, 2^12446214178 is an apocalyptic number.

12446214178 is a deficient number, since it is larger than the sum of its proper divisors (6533660318).

12446214178 is a wasteful number, since it uses less digits than its factorization.

12446214178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24249.

The product of its digits is 86016, while the sum is 40.

Adding to 12446214178 its reverse (87141264421), we get a palindrome (99587478599).

The spelling of 12446214178 in words is "twelve billion, four hundred forty-six million, two hundred fourteen thousand, one hundred seventy-eight".