205920446828 has 12 divisors (see below), whose sum is σ = 360609145512. Its totient is φ = 102889262400.

The previous prime is 205920446821. The next prime is 205920446833. The reversal of 205920446828 is 828644029502.

It is not an unprimeable number, because it can be changed into a prime (205920446821) 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, 17733725 + ... + 17745332.

It is an arithmetic number, because the mean of its divisors is an integer number (30050762126).

Almost surely, 2^205920446828 is an apocalyptic number.

It is an amenable number.

205920446828 is a deficient number, since it is larger than the sum of its proper divisors (154688698684).

205920446828 is a wasteful number, since it uses less digits than its factorization.

205920446828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35480512 (or 35480510 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 205920446828 in words is "two hundred five billion, nine hundred twenty million, four hundred forty-six thousand, eight hundred twenty-eight".