13847221216 has 48 divisors (see below), whose sum is σ = 27918729216. Its totient is φ = 6757566336.

The previous prime is 13847221207. The next prime is 13847221217. The reversal of 13847221216 is 61212274831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13847221217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539425 + ... + 564511.

It is an arithmetic number, because the mean of its divisors is an integer number (581640192).

Almost surely, 2^13847221216 is an apocalyptic number.

13847221216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13847221216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13959364608).

13847221216 is an abundant number, since it is smaller than the sum of its proper divisors (14071508000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13847221216 is a wasteful number, since it uses less digits than its factorization.

13847221216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25511 (or 25503 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The spelling of 13847221216 in words is "thirteen billion, eight hundred forty-seven million, two hundred twenty-one thousand, two hundred sixteen".