6626489328 has 120 divisors (see below), whose sum is σ = 19332490320. Its totient is φ = 2116208640.

The previous prime is 6626489327. The next prime is 6626489333. The reversal of 6626489328 is 8239846266.

6626489328 is a `hidden beast` number, since 6 + 626 + 4 + 8 + 9 + 3 + 2 + 8 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6626489327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 541000 + ... + 553112.

It is an arithmetic number, because the mean of its divisors is an integer number (161104086).

Almost surely, 2^6626489328 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 6626489328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9666245160).

6626489328 is an abundant number, since it is smaller than the sum of its proper divisors (12706000992).

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

6626489328 is a wasteful number, since it uses less digits than its factorization.

6626489328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12287 (or 12278 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 54.

The square root of 6626489328 is about 81403.2513355578. The cubic root of 6626489328 is about 1878.2836047179.

The spelling of 6626489328 in words is "six billion, six hundred twenty-six million, four hundred eighty-nine thousand, three hundred twenty-eight".