3651243569 has 2 divisors, whose sum is σ = 3651243570. Its totient is φ = 3651243568.

The previous prime is 3651243517. The next prime is 3651243593. The reversal of 3651243569 is 9653421563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2020053025 + 1631190544 = 44945^2 + 40388^2 .

It is a cyclic number.

It is not a de Polignac number, because 3651243569 - 2²⁸ = 3382808113 is a prime.

It is a super-2 number, since 2×3651243569² = 26663159200327715522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3651243599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1825621784 + 1825621785.

It is an arithmetic number, because the mean of its divisors is an integer number (1825621785).

Almost surely, 2^3651243569 is an apocalyptic number.

It is an amenable number.

3651243569 is a deficient number, since it is larger than the sum of its proper divisors (1).

3651243569 is an equidigital number, since it uses as much as digits as its factorization.

3651243569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 583200, while the sum is 44.

The square root of 3651243569 is about 60425.5208417768. The cubic root of 3651243569 is about 1539.8565629322.

The spelling of 3651243569 in words is "three billion, six hundred fifty-one million, two hundred forty-three thousand, five hundred sixty-nine".