18470941216 has 144 divisors (see below), whose sum is σ = 46183506264. Its totient is φ = 7206506496.

The previous prime is 18470941211. The next prime is 18470941253. The reversal of 18470941216 is 61214907481.

It can be written as a sum of positive squares in 4 ways, for example, as 11578620816 + 6892320400 = 107604^2 + 83020^2 .

It is not an unprimeable number, because it can be changed into a prime (18470941211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1481826 + ... + 1494238.

Almost surely, 2^18470941216 is an apocalyptic number.

18470941216 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 18470941216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23091753132).

18470941216 is an abundant number, since it is smaller than the sum of its proper divisors (27712565048).

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

18470941216 is a wasteful number, since it uses less digits than its factorization.

18470941216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12523 (or 12508 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 18470941216 in words is "eighteen billion, four hundred seventy million, nine hundred forty-one thousand, two hundred sixteen".