3644063012336 has 20 divisors (see below), whose sum is σ = 7062542605992. Its totient is φ = 1821471372096.

The previous prime is 3644063012333. The next prime is 3644063012353. The reversal of 3644063012336 is 6332103604463.

It is a junction number, because it is equal to n+sod(n) for n = 3644063012293 and 3644063012302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644063012333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34954706 + ... + 35058801.

Almost surely, 2^{3644063012336} is an apocalyptic number.

It is an amenable number.

3644063012336 is a deficient number, since it is larger than the sum of its proper divisors (3418479593656).

3644063012336 is a wasteful number, since it uses less digits than its factorization.

3644063012336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70016768 (or 70016762 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 41.

Adding to 3644063012336 its reverse (6332103604463), we get a palindrome (9976166616799).

The spelling of 3644063012336 in words is "three trillion, six hundred forty-four billion, sixty-three million, twelve thousand, three hundred thirty-six".