4021430006239 has 2 divisors, whose sum is σ = 4021430006240. Its totient is φ = 4021430006238.

The previous prime is 4021430006213. The next prime is 4021430006291. The reversal of 4021430006239 is 9326000341204.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4021430006239 - 2⁹ = 4021430005727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4021430006039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010715003119 + 2010715003120.

It is an arithmetic number, because the mean of its divisors is an integer number (2010715003120).

Almost surely, 2^{4021430006239} is an apocalyptic number.

4021430006239 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021430006239 is an equidigital number, since it uses as much as digits as its factorization.

4021430006239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 4021430006239 in words is "four trillion, twenty-one billion, four hundred thirty million, six thousand, two hundred thirty-nine".