3645564535 has 4 divisors (see below), whose sum is σ = 4374677448. Its totient is φ = 2916451624.

The previous prime is 3645564493. The next prime is 3645564551. The reversal of 3645564535 is 5354655463.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3645564535 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364556449 + ... + 364556458.

It is an arithmetic number, because the mean of its divisors is an integer number (1093669362).

Almost surely, 2^3645564535 is an apocalyptic number.

3645564535 is a deficient number, since it is larger than the sum of its proper divisors (729112913).

3645564535 is an equidigital number, since it uses as much as digits as its factorization.

3645564535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729112912.

The product of its digits is 3240000, while the sum is 46.

The square root of 3645564535 is about 60378.5105397608. The cubic root of 3645564535 is about 1539.0577998640.

The spelling of 3645564535 in words is "three billion, six hundred forty-five million, five hundred sixty-four thousand, five hundred thirty-five".