4021143990859 has 2 divisors, whose sum is σ = 4021143990860. Its totient is φ = 4021143990858.

The previous prime is 4021143990817. The next prime is 4021143990881. The reversal of 4021143990859 is 9580993411204.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4021143990859 is a prime.

It is not a weakly prime, because it can be changed into another prime (4021143900859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010571995429 + 2010571995430.

It is an arithmetic number, because the mean of its divisors is an integer number (2010571995430).

Almost surely, 2^{4021143990859} is an apocalyptic number.

4021143990859 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021143990859 is an equidigital number, since it uses as much as digits as its factorization.

4021143990859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 4021143990859 in words is "four trillion, twenty-one billion, one hundred forty-three million, nine hundred ninety thousand, eight hundred fifty-nine".