3800209021205 has 8 divisors (see below), whose sum is σ = 4570544848032. Its totient is φ = 3033304535248.

The previous prime is 3800209021199. The next prime is 3800209021229. The reversal of 3800209021205 is 5021209020083.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3800209021205 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857832779 + ... + 857837208.

It is an arithmetic number, because the mean of its divisors is an integer number (571318106004).

Almost surely, 2^{3800209021205} is an apocalyptic number.

It is an amenable number.

3800209021205 is a deficient number, since it is larger than the sum of its proper divisors (770335826827).

3800209021205 is a wasteful number, since it uses less digits than its factorization.

3800209021205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715670435.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 3800209021205 in words is "three trillion, eight hundred billion, two hundred nine million, twenty-one thousand, two hundred five".