3538663325609 has 2 divisors, whose sum is σ = 3538663325610. Its totient is φ = 3538663325608.

The previous prime is 3538663325597. The next prime is 3538663325699. The reversal of 3538663325609 is 9065233668353.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3249222553600 + 289440772009 = 1802560^2 + 537997^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3538663325609 is a prime.

It is not a weakly prime, because it can be changed into another prime (3538663325699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1769331662804 + 1769331662805.

It is an arithmetic number, because the mean of its divisors is an integer number (1769331662805).

Almost surely, 2^{3538663325609} is an apocalyptic number.

It is an amenable number.

3538663325609 is a deficient number, since it is larger than the sum of its proper divisors (1).

3538663325609 is an equidigital number, since it uses as much as digits as its factorization.

3538663325609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62985600, while the sum is 59.

The spelling of 3538663325609 in words is "three trillion, five hundred thirty-eight billion, six hundred sixty-three million, three hundred twenty-five thousand, six hundred nine".