3643643463664 has 10 divisors (see below), whose sum is σ = 7059559210880. Its totient is φ = 1821821731824.

The previous prime is 3643643463641. The next prime is 3643643463697. The reversal of 3643643463664 is 4663643463463.

It is a happy number.

It is a super-3 number, since 3×3643643463664³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 3643643463599 and 3643643463608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113863858224 + ... + 113863858255.

It is an arithmetic number, because the mean of its divisors is an integer number (705955921088).

Almost surely, 2^{3643643463664} is an apocalyptic number.

It is an amenable number.

3643643463664 is a deficient number, since it is larger than the sum of its proper divisors (3415915747216).

3643643463664 is a wasteful number, since it uses less digits than its factorization.

3643643463664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227727716487 (or 227727716481 counting only the distinct ones).

The product of its digits is 161243136, while the sum is 58.

The spelling of 3643643463664 in words is "three trillion, six hundred forty-three billion, six hundred forty-three million, four hundred sixty-three thousand, six hundred sixty-four".