200443348681 has 9 divisors (see below), whose sum is σ = 203259903669. Its totient is φ = 197665314336.

The previous prime is 200443348649. The next prime is 200443348783. The reversal of 200443348681 is 186843344002.

The square root of 200443348681 is 447709.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 78125281081 + 122318067600 = 279509^2 + 349740^2 .

It is not a de Polignac number, because 200443348681 - 2⁵ = 200443348649 is a prime.

It is a super-2 number, since 2×200443348681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200443348381) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 32679691 + ... + 32685823.

It is an arithmetic number, because the mean of its divisors is an integer number (22584433741).

Almost surely, 2^200443348681 is an apocalyptic number.

200443348681 is the 447709-th square number.

200443348681 is the 223855-th centered octagonal number.

It is an amenable number.

200443348681 is a deficient number, since it is larger than the sum of its proper divisors (2816554988).

200443348681 is an frugal number, since it uses more digits than its factorization.

200443348681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12412 (or 6206 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 43.

The spelling of 200443348681 in words is "two hundred billion, four hundred forty-three million, three hundred forty-eight thousand, six hundred eighty-one".