12926408421 has 8 divisors (see below), whose sum is σ = 17325448704. Its totient is φ = 8572486880.

The previous prime is 12926408399. The next prime is 12926408441. The reversal of 12926408421 is 12480462921.

12926408421 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 cyclic number.

It is not a de Polignac number, because 12926408421 - 2¹⁵ = 12926375653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12926408421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12926408441) 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 7 ways as a sum of consecutive naturals, for example, 11279016 + ... + 11280161.

It is an arithmetic number, because the mean of its divisors is an integer number (2165681088).

Almost surely, 2^12926408421 is an apocalyptic number.

It is an amenable number.

12926408421 is a deficient number, since it is larger than the sum of its proper divisors (4399040283).

12926408421 is a wasteful number, since it uses less digits than its factorization.

12926408421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22559371.

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 12926408421 in words is "twelve billion, nine hundred twenty-six million, four hundred eight thousand, four hundred twenty-one".