3535561643 has 2 divisors, whose sum is σ = 3535561644. Its totient is φ = 3535561642.

The previous prime is 3535561637. The next prime is 3535561669. The reversal of 3535561643 is 3461655353.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3535561643 - 2¹⁰ = 3535560619 is a prime.

It is a super-2 number, since 2×3535561643² = 25000392262905718898, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3535561643.

It is not a weakly prime, because it can be changed into another prime (3535561613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1767780821 + 1767780822.

It is an arithmetic number, because the mean of its divisors is an integer number (1767780822).

Almost surely, 2^3535561643 is an apocalyptic number.

3535561643 is a deficient number, since it is larger than the sum of its proper divisors (1).

3535561643 is an equidigital number, since it uses as much as digits as its factorization.

3535561643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486000, while the sum is 41.

The square root of 3535561643 is about 59460.5889896829. The cubic root of 3535561643 is about 1523.4193627813.

The spelling of 3535561643 in words is "three billion, five hundred thirty-five million, five hundred sixty-one thousand, six hundred forty-three".