9636822989021 has 8 divisors (see below), whose sum is σ = 9794569439160. Its totient is φ = 9480175817728.

The previous prime is 9636822988967. The next prime is 9636822989039. The reversal of 9636822989021 is 1209892286369.

It can be written as a sum of positive squares in 4 ways, for example, as 1471888209796 + 8164934779225 = 1213214^2 + 2857435^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9636822989021 - 2¹⁰ = 9636822987997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9636822089021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274802036 + ... + 274837101.

It is an arithmetic number, because the mean of its divisors is an integer number (1224321179895).

Almost surely, 2^{9636822989021} is an apocalyptic number.

It is an amenable number.

9636822989021 is a deficient number, since it is larger than the sum of its proper divisors (157746450139).

9636822989021 is a wasteful number, since it uses less digits than its factorization.

9636822989021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549639423.

The product of its (nonzero) digits is 40310784, while the sum is 65.

The spelling of 9636822989021 in words is "nine trillion, six hundred thirty-six billion, eight hundred twenty-two million, nine hundred eighty-nine thousand, twenty-one".