9854153382221 has 4 divisors (see below), whose sum is σ = 9862358340444. Its totient is φ = 9845948424000.

The previous prime is 9854153382187. The next prime is 9854153382257. The reversal of 9854153382221 is 1222833514589.

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 4941680094121 + 4912473288100 = 2222989^2 + 2216410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9854153382221 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 (9854153381221) 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, 4102477310 + ... + 4102479711.

It is an arithmetic number, because the mean of its divisors is an integer number (2465589585111).

Almost surely, 2^{9854153382221} is an apocalyptic number.

It is an amenable number.

9854153382221 is a deficient number, since it is larger than the sum of its proper divisors (8204958223).

9854153382221 is a wasteful number, since it uses less digits than its factorization.

9854153382221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8204958222.

The product of its digits is 4147200, while the sum is 53.

The spelling of 9854153382221 in words is "nine trillion, eight hundred fifty-four billion, one hundred fifty-three million, three hundred eighty-two thousand, two hundred twenty-one".