8200723372649 has 4 divisors (see below), whose sum is σ = 8205129996420. Its totient is φ = 8196316748880.

The previous prime is 8200723372613. The next prime is 8200723372651. The reversal of 8200723372649 is 9462733270028.

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 340028934400 + 7860694438249 = 583120^2 + 2803693^2 .

It is a cyclic number.

It is not a de Polignac number, because 8200723372649 - 2¹⁶ = 8200723307113 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 8200723372649.

It is not an unprimeable number, because it can be changed into a prime (8200723302649) 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, 2203309094 + ... + 2203312815.

It is an arithmetic number, because the mean of its divisors is an integer number (2051282499105).

Almost surely, 2^{8200723372649} is an apocalyptic number.

It is an amenable number.

8200723372649 is a deficient number, since it is larger than the sum of its proper divisors (4406623771).

8200723372649 is a wasteful number, since it uses less digits than its factorization.

8200723372649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4406623770.

The product of its (nonzero) digits is 6096384, while the sum is 53.

The spelling of 8200723372649 in words is "eight trillion, two hundred billion, seven hundred twenty-three million, three hundred seventy-two thousand, six hundred forty-nine".