8218599936 has 160 divisors (see below), whose sum is σ = 23239941120. Its totient is φ = 2575355904.

The previous prime is 8218599899. The next prime is 8218599941. The reversal of 8218599936 is 6399958128.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8218599936.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2082381 + ... + 2086323.

It is an arithmetic number, because the mean of its divisors is an integer number (145249632).

Almost surely, 2^8218599936 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 8218599936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11619970560).

8218599936 is an abundant number, since it is smaller than the sum of its proper divisors (15021341184).

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

8218599936 is a wasteful number, since it uses less digits than its factorization.

8218599936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4046 (or 4030 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 60.

The square root of 8218599936 is about 90656.4941744385. The cubic root of 8218599936 is about 2018.0532117826.

The spelling of 8218599936 in words is "eight billion, two hundred eighteen million, five hundred ninety-nine thousand, nine hundred thirty-six".