3668889805840 has 120 divisors (see below), whose sum is σ = 10354277908800. Its totient is φ = 1203213521664.

The previous prime is 3668889805813. The next prime is 3668889805853. The reversal of 3668889805840 is 485089888663.

3668889805840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20256390 + ... + 20436709.

It is an arithmetic number, because the mean of its divisors is an integer number (86285649240).

Almost surely, 2^{3668889805840} is an apocalyptic number.

It is an amenable number.

3668889805840 is an abundant number, since it is smaller than the sum of its proper divisors (6685388102960).

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

3668889805840 is a wasteful number, since it uses less digits than its factorization.

3668889805840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40693149 (or 40693136 counting only the distinct ones).

The product of its (nonzero) digits is 637009920, while the sum is 73.

The spelling of 3668889805840 in words is "three trillion, six hundred sixty-eight billion, eight hundred eighty-nine million, eight hundred five thousand, eight hundred forty".