6469821108 has 144 divisors (see below), whose sum is σ = 17364110400. Its totient is φ = 2083112640.

The previous prime is 6469821103. The next prime is 6469821131. The reversal of 6469821108 is 8011289646.

6469821108 is a `hidden beast` number, since 6 + 469 + 82 + 1 + 108 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6469821103) 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 47 ways as a sum of consecutive naturals, for example, 35744778 + ... + 35744958.

It is an arithmetic number, because the mean of its divisors is an integer number (120584100).

Almost surely, 2^6469821108 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 6469821108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8682055200).

6469821108 is an abundant number, since it is smaller than the sum of its proper divisors (10894289292).

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

6469821108 is a wasteful number, since it uses less digits than its factorization.

6469821108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 6469821108 is about 80435.1981908418. The cubic root of 6469821108 is about 1863.3628134718.

The spelling of 6469821108 in words is "six billion, four hundred sixty-nine million, eight hundred twenty-one thousand, one hundred eight".