12389496644 has 12 divisors (see below), whose sum is σ = 24778993344. Its totient is φ = 5309784264.

The previous prime is 12389496643. The next prime is 12389496653. The reversal of 12389496644 is 44669498321.

12389496644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

12389496644 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 12389496644.

It is not an unprimeable number, because it can be changed into a prime (12389496643) by changing a digit.

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, 221240984 + ... + 221241039.

It is an arithmetic number, because the mean of its divisors is an integer number (2064916112).

Almost surely, 2^12389496644 is an apocalyptic number.

12389496644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12389496644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12389496644 is a wasteful number, since it uses less digits than its factorization.

12389496644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442482034 (or 442482032 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 56.

The spelling of 12389496644 in words is "twelve billion, three hundred eighty-nine million, four hundred ninety-six thousand, six hundred forty-four".