2421126439 has 2 divisors, whose sum is σ = 2421126440. Its totient is φ = 2421126438.

The previous prime is 2421126437. The next prime is 2421126467. The reversal of 2421126439 is 9346211242.

2421126439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2421126439 - 2¹ = 2421126437 is a prime.

Together with 2421126437, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421126437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210563219 + 1210563220.

It is an arithmetic number, because the mean of its divisors is an integer number (1210563220).

Almost surely, 2^2421126439 is an apocalyptic number.

2421126439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421126439 is an equidigital number, since it uses as much as digits as its factorization.

2421126439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 34.

The square root of 2421126439 is about 49204.9432374431. The cubic root of 2421126439 is about 1342.7829663144.

The spelling of 2421126439 in words is "two billion, four hundred twenty-one million, one hundred twenty-six thousand, four hundred thirty-nine".