3544721466728 has 16 divisors (see below), whose sum is σ = 7157610654180. Its totient is φ = 1636025292288.

The previous prime is 3544721466707. The next prime is 3544721466757. The reversal of 3544721466728 is 8276641274453.

3544721466728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3529355880964 + 15365585764 = 1878658^2 + 123958^2 .

It is a super-2 number, since 2×3544721466728² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17041930025 + ... + 17041930232.

Almost surely, 2^{3544721466728} is an apocalyptic number.

It is an amenable number.

3544721466728 is an abundant number, since it is smaller than the sum of its proper divisors (3612889187452).

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

3544721466728 is a wasteful number, since it uses less digits than its factorization.

3544721466728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34083860276 (or 34083860272 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 59.

The spelling of 3544721466728 in words is "three trillion, five hundred forty-four billion, seven hundred twenty-one million, four hundred sixty-six thousand, seven hundred twenty-eight".