3646450865663 has 4 divisors (see below), whose sum is σ = 3745003591800. Its totient is φ = 3547898139528.

The previous prime is 3646450865639. The next prime is 3646450865669. The reversal of 3646450865663 is 3665680546463.

3646450865663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3646450865663 - 2¹² = 3646450861567 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3646450865596 and 3646450865605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3646450865669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49276363013 + ... + 49276363086.

It is an arithmetic number, because the mean of its divisors is an integer number (936250897950).

Almost surely, 2^{3646450865663} is an apocalyptic number.

3646450865663 is a deficient number, since it is larger than the sum of its proper divisors (98552726137).

3646450865663 is an equidigital number, since it uses as much as digits as its factorization.

3646450865663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98552726136.

The product of its (nonzero) digits is 223948800, while the sum is 62.

The spelling of 3646450865663 in words is "three trillion, six hundred forty-six billion, four hundred fifty million, eight hundred sixty-five thousand, six hundred sixty-three".