3655628768 has 48 divisors (see below), whose sum is σ = 7916272560. Its totient is φ = 1661630080.

The previous prime is 3655628707. The next prime is 3655628771. The reversal of 3655628768 is 8678265563.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323 + ... + 85506.

It is an arithmetic number, because the mean of its divisors is an integer number (164922345).

Almost surely, 2^3655628768 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 3655628768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3958136280).

3655628768 is an abundant number, since it is smaller than the sum of its proper divisors (4260643792).

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

3655628768 is an equidigital number, since it uses as much as digits as its factorization.

3655628768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85872 (or 85842 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 56.

The square root of 3655628768 is about 60461.7959376001. The cubic root of 3655628768 is about 1540.4727800117.

The spelling of 3655628768 in words is "three billion, six hundred fifty-five million, six hundred twenty-eight thousand, seven hundred sixty-eight".