3646450866018 has 32 divisors (see below), whose sum is σ = 7296232087872. Its totient is φ = 1214928691200.

The previous prime is 3646450866017. The next prime is 3646450866031. The reversal of 3646450866018 is 8106680546463.

It is not an unprimeable number, because it can be changed into a prime (3646450866017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187150905 + ... + 187170387.

It is an arithmetic number, because the mean of its divisors is an integer number (228007252746).

Almost surely, 2^{3646450866018} is an apocalyptic number.

3646450866018 is an abundant number, since it is smaller than the sum of its proper divisors (3649781221854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3646450866018 is a wasteful number, since it uses less digits than its factorization.

3646450866018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32130.

The product of its (nonzero) digits is 19906560, while the sum is 57.

The spelling of 3646450866018 in words is "three trillion, six hundred forty-six billion, four hundred fifty million, eight hundred sixty-six thousand, eighteen".