4136243261609 has 2 divisors, whose sum is σ = 4136243261610. Its totient is φ = 4136243261608.

The previous prime is 4136243261599. The next prime is 4136243261629. The reversal of 4136243261609 is 9061623426314.

4136243261609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3165125646400 + 971117615209 = 1779080^2 + 985453^2 .

It is a cyclic number.

It is not a de Polignac number, because 4136243261609 - 2¹² = 4136243257513 is a prime.

It is not a weakly prime, because it can be changed into another prime (4136243261629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2068121630804 + 2068121630805.

It is an arithmetic number, because the mean of its divisors is an integer number (2068121630805).

Almost surely, 2^{4136243261609} is an apocalyptic number.

It is an amenable number.

4136243261609 is a deficient number, since it is larger than the sum of its proper divisors (1).

4136243261609 is an equidigital number, since it uses as much as digits as its factorization.

4136243261609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 47.

The spelling of 4136243261609 in words is "four trillion, one hundred thirty-six billion, two hundred forty-three million, two hundred sixty-one thousand, six hundred nine".