3564665028 has 72 divisors (see below), whose sum is σ = 9499596288. Its totient is φ = 1124817408.

The previous prime is 3564665021. The next prime is 3564665029. The reversal of 3564665028 is 8205664653.

3564665028 is a `hidden beast` number, since 3 + 564 + 6 + 65 + 0 + 28 = 666.

It is not an unprimeable number, because it can be changed into a prime (3564665021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58125 + ... + 102507.

Almost surely, 2^3564665028 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 3564665028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4749798144).

3564665028 is an abundant number, since it is smaller than the sum of its proper divisors (5934931260).

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

3564665028 is a wasteful number, since it uses less digits than its factorization.

3564665028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44513 (or 44508 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The square root of 3564665028 is about 59704.8157856634. The cubic root of 3564665028 is about 1527.5880129971.

The spelling of 3564665028 in words is "three billion, five hundred sixty-four million, six hundred sixty-five thousand, twenty-eight".