3649282561 has 2 divisors, whose sum is σ = 3649282562. Its totient is φ = 3649282560.

The previous prime is 3649282547. The next prime is 3649282597. The reversal of 3649282561 is 1652829463.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3645744400 + 3538161 = 60380^2 + 1881^2 .

It is a cyclic number.

It is not a de Polignac number, because 3649282561 - 2¹¹ = 3649280513 is a prime.

It is not a weakly prime, because it can be changed into another prime (3649282961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1824641280 + 1824641281.

It is an arithmetic number, because the mean of its divisors is an integer number (1824641281).

Almost surely, 2^3649282561 is an apocalyptic number.

It is an amenable number.

3649282561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3649282561 is an equidigital number, since it uses as much as digits as its factorization.

3649282561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 46.

The square root of 3649282561 is about 60409.2920087630. The cubic root of 3649282561 is about 1539.5808384433.

The spelling of 3649282561 in words is "three billion, six hundred forty-nine million, two hundred eighty-two thousand, five hundred sixty-one".