4401043922809 has 2 divisors, whose sum is σ = 4401043922810. Its totient is φ = 4401043922808.

The previous prime is 4401043922773. The next prime is 4401043922819. The reversal of 4401043922809 is 9082293401044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2897484840000 + 1503559082809 = 1702200^2 + 1226197^2 .

It is a cyclic number.

It is not a de Polignac number, because 4401043922809 - 2¹⁷ = 4401043791737 is a prime.

It is a super-2 number, since 2×4401043922809² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4401043922819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2200521961404 + 2200521961405.

It is an arithmetic number, because the mean of its divisors is an integer number (2200521961405).

Almost surely, 2^{4401043922809} is an apocalyptic number.

It is an amenable number.

4401043922809 is a deficient number, since it is larger than the sum of its proper divisors (1).

4401043922809 is an equidigital number, since it uses as much as digits as its factorization.

4401043922809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 4401043922809 in words is "four trillion, four hundred one billion, forty-three million, nine hundred twenty-two thousand, eight hundred nine".