3643505043 has 16 divisors (see below), whose sum is σ = 4965511680. Its totient is φ = 2375826336.

The previous prime is 3643505039. The next prime is 3643505077. The reversal of 3643505043 is 3405053463.

It is not a de Polignac number, because 3643505043 - 2² = 3643505039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3643504995 and 3643505013.

It is not an unprimeable number, because it can be changed into a prime (3643505023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46480 + ... + 97197.

It is an arithmetic number, because the mean of its divisors is an integer number (310344480).

Almost surely, 2^3643505043 is an apocalyptic number.

3643505043 is a deficient number, since it is larger than the sum of its proper divisors (1322006637).

3643505043 is a wasteful number, since it uses less digits than its factorization.

3643505043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143866.

The product of its (nonzero) digits is 64800, while the sum is 33.

The square root of 3643505043 is about 60361.4532876736. The cubic root of 3643505043 is about 1538.7679248423.

The spelling of 3643505043 in words is "three billion, six hundred forty-three million, five hundred five thousand, forty-three".