200449983905 has 4 divisors (see below), whose sum is σ = 240539980692. Its totient is φ = 160359987120.

The previous prime is 200449983889. The next prime is 200449983911. The reversal of 200449983905 is 509389944002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67262941201 + 133187042704 = 259351^2 + 364948^2 .

It is not a de Polignac number, because 200449983905 - 2⁴ = 200449983889 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20044998386 + ... + 20044998395.

It is an arithmetic number, because the mean of its divisors is an integer number (60134995173).

Almost surely, 2^200449983905 is an apocalyptic number.

It is an amenable number.

200449983905 is a deficient number, since it is larger than the sum of its proper divisors (40089996787).

200449983905 is an equidigital number, since it uses as much as digits as its factorization.

200449983905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40089996786.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 200449983905 in words is "two hundred billion, four hundred forty-nine million, nine hundred eighty-three thousand, nine hundred five".