12444830421 has 16 divisors (see below), whose sum is σ = 16814530560. Its totient is φ = 8185984560.

The previous prime is 12444830401. The next prime is 12444830473. The reversal of 12444830421 is 12403844421.

12444830421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12444830421 - 2⁶ = 12444830357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12444830401) 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 15 ways as a sum of consecutive naturals, for example, 348676 + ... + 382706.

It is an arithmetic number, because the mean of its divisors is an integer number (1050908160).

Almost surely, 2^12444830421 is an apocalyptic number.

It is an amenable number.

12444830421 is a deficient number, since it is larger than the sum of its proper divisors (4369700139).

12444830421 is a wasteful number, since it uses less digits than its factorization.

12444830421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35656.

The product of its (nonzero) digits is 24576, while the sum is 33.

The spelling of 12444830421 in words is "twelve billion, four hundred forty-four million, eight hundred thirty thousand, four hundred twenty-one".