4021422515843 has 2 divisors, whose sum is σ = 4021422515844. Its totient is φ = 4021422515842.

The previous prime is 4021422515821. The next prime is 4021422515849. The reversal of 4021422515843 is 3485152241204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4021422515843 - 2⁶ = 4021422515779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4021422515843.

It is not a weakly prime, because it can be changed into another prime (4021422515849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010711257921 + 2010711257922.

It is an arithmetic number, because the mean of its divisors is an integer number (2010711257922).

Almost surely, 2^{4021422515843} is an apocalyptic number.

4021422515843 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021422515843 is an equidigital number, since it uses as much as digits as its factorization.

4021422515843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 307200, while the sum is 41.

The spelling of 4021422515843 in words is "four trillion, twenty-one billion, four hundred twenty-two million, five hundred fifteen thousand, eight hundred forty-three".