2421406120439 has 2 divisors, whose sum is σ = 2421406120440. Its totient is φ = 2421406120438.

The previous prime is 2421406120303. The next prime is 2421406120447. The reversal of 2421406120439 is 9340216041242.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2421406120439 - 2⁸ = 2421406120183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421406120459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210703060219 + 1210703060220.

It is an arithmetic number, because the mean of its divisors is an integer number (1210703060220).

Almost surely, 2^{2421406120439} is an apocalyptic number.

2421406120439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421406120439 is an equidigital number, since it uses as much as digits as its factorization.

2421406120439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 2421406120439 in words is "two trillion, four hundred twenty-one billion, four hundred six million, one hundred twenty thousand, four hundred thirty-nine".