3642536563 has 4 divisors (see below), whose sum is σ = 3642748200. Its totient is φ = 3642324928.

The previous prime is 3642536551. The next prime is 3642536567. The reversal of 3642536563 is 3656352463.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3656352463 = 569 ⋅6425927.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3642536563 is a prime.

It is a super-2 number, since 2×3642536563² = 26536145225583705938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3642536567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77470 + ... + 115267.

It is an arithmetic number, because the mean of its divisors is an integer number (910687050).

Almost surely, 2^3642536563 is an apocalyptic number.

3642536563 is a deficient number, since it is larger than the sum of its proper divisors (211637).

3642536563 is a wasteful number, since it uses less digits than its factorization.

3642536563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211636.

The product of its digits is 1166400, while the sum is 43.

The square root of 3642536563 is about 60353.4304161744. The cubic root of 3642536563 is about 1538.6315728036.

The spelling of 3642536563 in words is "three billion, six hundred forty-two million, five hundred thirty-six thousand, five hundred sixty-three".