4021438247027 has 2 divisors, whose sum is σ = 4021438247028. Its totient is φ = 4021438247026.

The previous prime is 4021438247009. The next prime is 4021438247041. The reversal of 4021438247027 is 7207428341204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4021438247027 - 2³⁰ = 4020364505203 is a prime.

It is not a weakly prime, because it can be changed into another prime (4021438247627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010719123513 + 2010719123514.

It is an arithmetic number, because the mean of its divisors is an integer number (2010719123514).

Almost surely, 2^{4021438247027} is an apocalyptic number.

4021438247027 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021438247027 is an equidigital number, since it uses as much as digits as its factorization.

4021438247027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 602112, while the sum is 44.

The spelling of 4021438247027 in words is "four trillion, twenty-one billion, four hundred thirty-eight million, two hundred forty-seven thousand, twenty-seven".