4043255312609 has 2 divisors, whose sum is σ = 4043255312610. Its totient is φ = 4043255312608.

The previous prime is 4043255312573. The next prime is 4043255312627. The reversal of 4043255312609 is 9062135523404.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3406885350625 + 636369961984 = 1845775^2 + 797728^2 .

It is a cyclic number.

It is not a de Polignac number, because 4043255312609 - 2³⁶ = 3974535835873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4043255312609.

It is not a weakly prime, because it can be changed into another prime (4043255312809) 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, 2021627656304 + 2021627656305.

It is an arithmetic number, because the mean of its divisors is an integer number (2021627656305).

Almost surely, 2^{4043255312609} is an apocalyptic number.

It is an amenable number.

4043255312609 is a deficient number, since it is larger than the sum of its proper divisors (1).

4043255312609 is an equidigital number, since it uses as much as digits as its factorization.

4043255312609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 4043255312609 in words is "four trillion, forty-three billion, two hundred fifty-five million, three hundred twelve thousand, six hundred nine".