205844252713 has 16 divisors (see below), whose sum is σ = 224861334912. Its totient is φ = 186878016000.

The previous prime is 205844252711. The next prime is 205844252723. The reversal of 205844252713 is 317252448502.

It is a cyclic number.

It is not a de Polignac number, because 205844252713 - 2¹ = 205844252711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205844252713.

It is not an unprimeable number, because it can be changed into a prime (205844252711) 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, 45609145 + ... + 45613657.

It is an arithmetic number, because the mean of its divisors is an integer number (14053833432).

Almost surely, 2^205844252713 is an apocalyptic number.

It is an amenable number.

205844252713 is a deficient number, since it is larger than the sum of its proper divisors (19017082199).

205844252713 is a wasteful number, since it uses less digits than its factorization.

205844252713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9216.

The product of its (nonzero) digits is 537600, while the sum is 43.

The spelling of 205844252713 in words is "two hundred five billion, eight hundred forty-four million, two hundred fifty-two thousand, seven hundred thirteen".