3644361602875 has 32 divisors (see below), whose sum is σ = 5198073034752. Its totient is φ = 2498908053600.

The previous prime is 3644361602873. The next prime is 3644361602897. The reversal of 3644361602875 is 5782061634463.

It is a happy number.

3644361602875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3644361602875 - 2¹ = 3644361602873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3644361602873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39019482 + ... + 39112768.

It is an arithmetic number, because the mean of its divisors is an integer number (162439782336).

Almost surely, 2^{3644361602875} is an apocalyptic number.

3644361602875 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3644361602875 is a deficient number, since it is larger than the sum of its proper divisors (1553711431877).

3644361602875 is an equidigital number, since it uses as much as digits as its factorization.

3644361602875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137956 (or 137946 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 55.

The spelling of 3644361602875 in words is "three trillion, six hundred forty-four billion, three hundred sixty-one million, six hundred two thousand, eight hundred seventy-five".