636341283073 has 4 divisors (see below), whose sum is σ = 643491185220. Its totient is φ = 629191380928.

The previous prime is 636341283041. The next prime is 636341283079. The reversal of 636341283073 is 370382143636.

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 265773243024 + 370568040049 = 515532^2 + 608743^2 .

It is a cyclic number.

It is not a de Polignac number, because 636341283073 - 2⁵ = 636341283041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (636341283079) 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, 3574950940 + ... + 3574951117.

It is an arithmetic number, because the mean of its divisors is an integer number (160872796305).

Almost surely, 2^636341283073 is an apocalyptic number.

It is an amenable number.

636341283073 is a deficient number, since it is larger than the sum of its proper divisors (7149902147).

636341283073 is an equidigital number, since it uses as much as digits as its factorization.

636341283073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7149902146.

The product of its (nonzero) digits is 1306368, while the sum is 46.

The spelling of 636341283073 in words is "six hundred thirty-six billion, three hundred forty-one million, two hundred eighty-three thousand, seventy-three".