12404421326 has 16 divisors (see below), whose sum is σ = 20730021120. Its totient is φ = 5518407480.

The previous prime is 12404421287. The next prime is 12404421349. The reversal of 12404421326 is 62312440421.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5997236 + ... + 5999303.

It is an arithmetic number, because the mean of its divisors is an integer number (1295626320).

Almost surely, 2^12404421326 is an apocalyptic number.

12404421326 is a deficient number, since it is larger than the sum of its proper divisors (8325599794).

12404421326 is a wasteful number, since it uses less digits than its factorization.

12404421326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11996599.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 12404421326 its reverse (62312440421), we get a palindrome (74716861747).

The spelling of 12404421326 in words is "twelve billion, four hundred four million, four hundred twenty-one thousand, three hundred twenty-six".