4227123376409 has 2 divisors, whose sum is σ = 4227123376410. Its totient is φ = 4227123376408.

The previous prime is 4227123376393. The next prime is 4227123376453. The reversal of 4227123376409 is 9046733217224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3825329664025 + 401793712384 = 1955845^2 + 633872^2 .

It is a cyclic number.

It is not a de Polignac number, because 4227123376409 - 2⁴ = 4227123376393 is a prime.

It is not a weakly prime, because it can be changed into another prime (4227123376459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2113561688204 + 2113561688205.

It is an arithmetic number, because the mean of its divisors is an integer number (2113561688205).

Almost surely, 2^{4227123376409} is an apocalyptic number.

It is an amenable number.

4227123376409 is a deficient number, since it is larger than the sum of its proper divisors (1).

4227123376409 is an equidigital number, since it uses as much as digits as its factorization.

4227123376409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 50.

The spelling of 4227123376409 in words is "four trillion, two hundred twenty-seven billion, one hundred twenty-three million, three hundred seventy-six thousand, four hundred nine".