4021430326657 has 2 divisors, whose sum is σ = 4021430326658. Its totient is φ = 4021430326656.

The previous prime is 4021430326637. The next prime is 4021430326673. The reversal of 4021430326657 is 7566230341204.

4021430326657 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., 3031582428736 + 989847897921 = 1741144^2 + 994911^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021430326657 - 2²³ = 4021421938049 is a prime.

It is not a weakly prime, because it can be changed into another prime (4021430326637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010715163328 + 2010715163329.

It is an arithmetic number, because the mean of its divisors is an integer number (2010715163329).

Almost surely, 2^{4021430326657} is an apocalyptic number.

It is an amenable number.

4021430326657 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021430326657 is an equidigital number, since it uses as much as digits as its factorization.

4021430326657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 4021430326657 in words is "four trillion, twenty-one billion, four hundred thirty million, three hundred twenty-six thousand, six hundred fifty-seven".