12426462421 has 2 divisors, whose sum is σ = 12426462422. Its totient is φ = 12426462420.

The previous prime is 12426462407. The next prime is 12426462431.

12426462421 is nontrivially palindromic in base 10.

12426462421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11435094225 + 991368196 = 106935^2 + 31486^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 12426462421 - 2¹¹ = 12426460373 is a prime.

It is a super-3 number, since 3×12426462421³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12426462401) 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 as a sum of consecutive naturals, namely, 6213231210 + 6213231211.

It is an arithmetic number, because the mean of its divisors is an integer number (6213231211).

Almost surely, 2^12426462421 is an apocalyptic number.

It is an amenable number.

12426462421 is a deficient number, since it is larger than the sum of its proper divisors (1).

12426462421 is an equidigital number, since it uses as much as digits as its factorization.

12426462421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36864, while the sum is 34.

The spelling of 12426462421 in words is "twelve billion, four hundred twenty-six million, four hundred sixty-two thousand, four hundred twenty-one".