6628422528 has 384 divisors, whose sum is σ = 23938649280. Its totient is φ = 1713733632.

The previous prime is 6628422503. The next prime is 6628422583. The reversal of 6628422528 is 8252248266.

6628422528 is a `hidden beast` number, since 66 + 28 + 42 + 2 + 528 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5555500 + ... + 5556692.

Almost surely, 2^6628422528 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 6628422528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11969324640).

6628422528 is an abundant number, since it is smaller than the sum of its proper divisors (17310226752).

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

6628422528 is a wasteful number, since it uses less digits than its factorization.

6628422528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286 (or 1271 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 6628422528 is about 81415.1246882298. The cubic root of 6628422528 is about 1878.4662426443.

The spelling of 6628422528 in words is "six billion, six hundred twenty-eight million, four hundred twenty-two thousand, five hundred twenty-eight".