6653242728 has 96 divisors (see below), whose sum is σ = 19734399360. Its totient is φ = 2008227840.

The previous prime is 6653242721. The next prime is 6653242769. The reversal of 6653242728 is 8272423566.

6653242728 is a `hidden beast` number, since 6 + 6 + 532 + 42 + 72 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (6653242721) 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, 187201 + ... + 219887.

It is an arithmetic number, because the mean of its divisors is an integer number (205566660).

Almost surely, 2^6653242728 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 6653242728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9867199680).

6653242728 is an abundant number, since it is smaller than the sum of its proper divisors (13081156632).

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

6653242728 is a wasteful number, since it uses less digits than its factorization.

6653242728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32967 (or 32960 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The square root of 6653242728 is about 81567.4121693216. The cubic root of 6653242728 is about 1880.8079679353.

The spelling of 6653242728 in words is "six billion, six hundred fifty-three million, two hundred forty-two thousand, seven hundred twenty-eight".