3640365818403 has 16 divisors (see below), whose sum is σ = 5021500655520. Its totient is φ = 2343080977664.

The previous prime is 3640365818317. The next prime is 3640365818539. The reversal of 3640365818403 is 3048185630463.

3640365818403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3640365818403 - 2¹⁴ = 3640365802019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3640365818303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166375 + ... + 2703407.

It is an arithmetic number, because the mean of its divisors is an integer number (313843790970).

Almost surely, 2^{3640365818403} is an apocalyptic number.

3640365818403 is a deficient number, since it is larger than the sum of its proper divisors (1381134837117).

3640365818403 is a wasteful number, since it uses less digits than its factorization.

3640365818403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553558.

The product of its (nonzero) digits is 4976640, while the sum is 51.

The spelling of 3640365818403 in words is "three trillion, six hundred forty billion, three hundred sixty-five million, eight hundred eighteen thousand, four hundred three".