3644637360652 has 6 divisors (see below), whose sum is σ = 6378115381148. Its totient is φ = 1822318680324.

The previous prime is 3644637360631. The next prime is 3644637360653. The reversal of 3644637360652 is 2560637364463.

It is a junction number, because it is equal to n+sod(n) for n = 3644637360593 and 3644637360602.

It is not an unprimeable number, because it can be changed into a prime (3644637360653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455579670078 + ... + 455579670085.

Almost surely, 2^{3644637360652} is an apocalyptic number.

It is an amenable number.

3644637360652 is a deficient number, since it is larger than the sum of its proper divisors (2733478020496).

3644637360652 is a wasteful number, since it uses less digits than its factorization.

3644637360652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911159340167 (or 911159340165 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 55.

The spelling of 3644637360652 in words is "three trillion, six hundred forty-four billion, six hundred thirty-seven million, three hundred sixty thousand, six hundred fifty-two".