12234441978 has 48 divisors (see below), whose sum is σ = 29699351136. Its totient is φ = 3607204320.

The previous prime is 12234441977. The next prime is 12234442021. The reversal of 12234441978 is 87914443221.

12234441978 is a `hidden beast` number, since 1 + 223 + 4 + 4 + 419 + 7 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (12234441977) 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 23 ways as a sum of consecutive naturals, for example, 827676 + ... + 842327.

It is an arithmetic number, because the mean of its divisors is an integer number (618736482).

Almost surely, 2^12234441978 is an apocalyptic number.

12234441978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12234441978 is an abundant number, since it is smaller than the sum of its proper divisors (17464909158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12234441978 is a wasteful number, since it uses less digits than its factorization.

12234441978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670059 (or 1670056 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The spelling of 12234441978 in words is "twelve billion, two hundred thirty-four million, four hundred forty-one thousand, nine hundred seventy-eight".