3228220725624 has 192 divisors, whose sum is σ = 9178027185600. Its totient is φ = 1023658137600.

The previous prime is 3228220725607. The next prime is 3228220725707. The reversal of 3228220725624 is 4265270228223.

3228220725624 is a `hidden beast` number, since 3 + 2 + 2 + 82 + 2 + 0 + 7 + 2 + 562 + 4 = 666.

It is a Cunningham number, because it is equal to 1796725²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 3228220725624.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 255128482 + ... + 255141134.

It is an arithmetic number, because the mean of its divisors is an integer number (47802224925).

Almost surely, 2^{3228220725624} 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 3228220725624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4589013592800).

3228220725624 is an abundant number, since it is smaller than the sum of its proper divisors (5949806459976).

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

3228220725624 is a wasteful number, since it uses less digits than its factorization.

3228220725624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14486 (or 14479 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 45.

The spelling of 3228220725624 in words is "three trillion, two hundred twenty-eight billion, two hundred twenty million, seven hundred twenty-five thousand, six hundred twenty-four".