3644452544463 has 16 divisors (see below), whose sum is σ = 5716788305760. Its totient is φ = 2286715321728.

The previous prime is 3644452544437. The next prime is 3644452544471.

3644452544463 is a `hidden beast` number, since 3 + 6 + 4 + 4 + 4 + 52 + 544 + 46 + 3 = 666.

3644452544463 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3644452544463 - 2⁶ = 3644452544399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644452544413) 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, 3969991420 + ... + 3969992337.

It is an arithmetic number, because the mean of its divisors is an integer number (357299269110).

Almost surely, 2^{3644452544463} is an apocalyptic number.

3644452544463 is a deficient number, since it is larger than the sum of its proper divisors (2072335761297).

3644452544463 is a wasteful number, since it uses less digits than its factorization.

3644452544463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7939983783 (or 7939983777 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 54.

The spelling of 3644452544463 in words is "three trillion, six hundred forty-four billion, four hundred fifty-two million, five hundred forty-four thousand, four hundred sixty-three".