3516220228728 has 32 divisors (see below), whose sum is σ = 8813148411600. Its totient is φ = 1169060364288.

The previous prime is 3516220228699. The next prime is 3516220228739. The reversal of 3516220228728 is 8278220226153.

3516220228728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 188305801 + ... + 188324472.

Almost surely, 2^{3516220228728} is an apocalyptic number.

It is an amenable number.

3516220228728 is an abundant number, since it is smaller than the sum of its proper divisors (5296928182872).

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

3516220228728 is a wasteful number, since it uses less digits than its factorization.

3516220228728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376630671 (or 376630667 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 3516220228728 in words is "three trillion, five hundred sixteen billion, two hundred twenty million, two hundred twenty-eight thousand, seven hundred twenty-eight".