8616921108 has 12 divisors (see below), whose sum is σ = 20106149280. Its totient is φ = 2872307032.

The previous prime is 8616921077. The next prime is 8616921133. The reversal of 8616921108 is 8011296168.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×8616921108³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8616921108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359038368 + ... + 359038391.

It is an arithmetic number, because the mean of its divisors is an integer number (1675512440).

Almost surely, 2^8616921108 is an apocalyptic number.

It is an amenable number.

8616921108 is an abundant number, since it is smaller than the sum of its proper divisors (11489228172).

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

8616921108 is a wasteful number, since it uses less digits than its factorization.

8616921108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718076766 (or 718076764 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 8616921108 is about 92827.3726225191. The cubic root of 8616921108 is about 2050.1424535550.

The spelling of 8616921108 in words is "eight billion, six hundred sixteen million, nine hundred twenty-one thousand, one hundred eight".