3644408044463 has 4 divisors (see below), whose sum is σ = 3644726706600. Its totient is φ = 3644089382328.

The previous prime is 3644408044429. The next prime is 3644408044579.

3644408044463 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 3644408044463 - 2¹⁸ = 3644407782319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644408044423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159313913 + ... + 159336786.

It is an arithmetic number, because the mean of its divisors is an integer number (911181676650).

Almost surely, 2^{3644408044463} is an apocalyptic number.

3644408044463 is a deficient number, since it is larger than the sum of its proper divisors (318662137).

3644408044463 is a wasteful number, since it uses less digits than its factorization.

3644408044463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318662136.

The product of its (nonzero) digits is 10616832, while the sum is 50.

The spelling of 3644408044463 in words is "three trillion, six hundred forty-four billion, four hundred eight million, forty-four thousand, four hundred sixty-three".