12444006623623 has 4 divisors (see below), whose sum is σ = 12444090529048. Its totient is φ = 12443922718200.

The previous prime is 12444006623603. The next prime is 12444006623641. The reversal of 12444006623623 is 32632660044421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12444006623623 is a prime.

It is a super-2 number, since 2×12444006623623² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12444006623623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12444006623603) 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 3 ways as a sum of consecutive naturals, for example, 41729853 + ... + 42026998.

It is an arithmetic number, because the mean of its divisors is an integer number (3111022632262).

Almost surely, 2^{12444006623623} is an apocalyptic number.

12444006623623 is a deficient number, since it is larger than the sum of its proper divisors (83905425).

12444006623623 is an equidigital number, since it uses as much as digits as its factorization.

12444006623623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83905424.

The product of its (nonzero) digits is 995328, while the sum is 43.

The spelling of 12444006623623 in words is "twelve trillion, four hundred forty-four billion, six million, six hundred twenty-three thousand, six hundred twenty-three".