3563668728 has 48 divisors (see below), whose sum is σ = 10159585800. Its totient is φ = 1125368640.

The previous prime is 3563668711. The next prime is 3563668753. The reversal of 3563668728 is 8278663653.

3563668728 is a `hidden beast` number, since 3 + 563 + 6 + 6 + 8 + 72 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1301143 + ... + 1303878.

Almost surely, 2^3563668728 is an apocalyptic number.

3563668728 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3563668728 is an abundant number, since it is smaller than the sum of its proper divisors (6595917072).

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

3563668728 is a wasteful number, since it uses less digits than its factorization.

3563668728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605052 (or 2605045 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The square root of 3563668728 is about 59696.4716545291. The cubic root of 3563668728 is about 1527.4456828635.

The spelling of 3563668728 in words is "three billion, five hundred sixty-three million, six hundred sixty-eight thousand, seven hundred twenty-eight".