4321810656 has 216 divisors, whose sum is σ = 12869569440. Its totient is φ = 1375395840.

The previous prime is 4321810643. The next prime is 4321810663. The reversal of 4321810656 is 6560181234.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 4321810656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 38246056 + ... + 38246168.

It is an arithmetic number, because the mean of its divisors is an integer number (59581340).

Almost surely, 2^4321810656 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 4321810656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6434784720).

4321810656 is an abundant number, since it is smaller than the sum of its proper divisors (8547758784).

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

4321810656 is a wasteful number, since it uses less digits than its factorization.

4321810656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 4321810656 is about 65740.4795844995. The cubic root of 4321810656 is about 1628.8780787551.

The spelling of 4321810656 in words is "four billion, three hundred twenty-one million, eight hundred ten thousand, six hundred fifty-six".