3638611031044 has 12 divisors (see below), whose sum is σ = 6946439241168. Its totient is φ = 1653914105000.

The previous prime is 3638611031023. The next prime is 3638611031047. The reversal of 3638611031044 is 4401301168363.

It is a junction number, because it is equal to n+sod(n) for n = 3638611030988 and 3638611031006.

It is not an unprimeable number, because it can be changed into a prime (3638611031047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41347852582 + ... + 41347852669.

It is an arithmetic number, because the mean of its divisors is an integer number (578869936764).

Almost surely, 2^{3638611031044} is an apocalyptic number.

It is an amenable number.

3638611031044 is a deficient number, since it is larger than the sum of its proper divisors (3307828210124).

3638611031044 is a wasteful number, since it uses less digits than its factorization.

3638611031044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82695705266 (or 82695705264 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 3638611031044 in words is "three trillion, six hundred thirty-eight billion, six hundred eleven million, thirty-one thousand, forty-four".