18367682916 has 96 divisors (see below), whose sum is σ = 47966929920. Its totient is φ = 5423299200.

The previous prime is 18367682911. The next prime is 18367682917. The reversal of 18367682916 is 61928676381.

It is not an unprimeable number, because it can be changed into a prime (18367682911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 850905 + ... + 872223.

It is an arithmetic number, because the mean of its divisors is an integer number (499655520).

Almost surely, 2^18367682916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18367682916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23983464960).

18367682916 is an abundant number, since it is smaller than the sum of its proper divisors (29599247004).

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

18367682916 is a wasteful number, since it uses less digits than its factorization.

18367682916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21505 (or 21503 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 57.

The spelling of 18367682916 in words is "eighteen billion, three hundred sixty-seven million, six hundred eighty-two thousand, nine hundred sixteen".