4221800139673 has 2 divisors, whose sum is σ = 4221800139674. Its totient is φ = 4221800139672.

The previous prime is 4221800139643. The next prime is 4221800139731. The reversal of 4221800139673 is 3769310081224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3875689130329 + 346111009344 = 1968677^2 + 588312^2 .

It is a cyclic number.

It is not a de Polignac number, because 4221800139673 - 2²¹ = 4221798042521 is a prime.

It is not a weakly prime, because it can be changed into another prime (4221800139643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110900069836 + 2110900069837.

It is an arithmetic number, because the mean of its divisors is an integer number (2110900069837).

Almost surely, 2^{4221800139673} is an apocalyptic number.

It is an amenable number.

4221800139673 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221800139673 is an equidigital number, since it uses as much as digits as its factorization.

4221800139673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 4221800139673 in words is "four trillion, two hundred twenty-one billion, eight hundred million, one hundred thirty-nine thousand, six hundred seventy-three".