12438640910 has 8 divisors (see below), whose sum is σ = 22389553656. Its totient is φ = 4975456360.

The previous prime is 12438640901. The next prime is 12438640931. The reversal of 12438640910 is 1904683421.

12438640910 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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, 621932036 + ... + 621932055.

It is an arithmetic number, because the mean of its divisors is an integer number (2798694207).

Almost surely, 2^12438640910 is an apocalyptic number.

12438640910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12438640910 is a deficient number, since it is larger than the sum of its proper divisors (9950912746).

12438640910 is a wasteful number, since it uses less digits than its factorization.

12438640910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243864098.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 12438640910 in words is "twelve billion, four hundred thirty-eight million, six hundred forty thousand, nine hundred ten".