3533646974728 has 128 divisors (see below), whose sum is σ = 7402873927680. Its totient is φ = 1570293688320.

The previous prime is 3533646974723. The next prime is 3533646974833. The reversal of 3533646974728 is 8274796463353.

It is not an unprimeable number, because it can be changed into a prime (3533646974723) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 808057950 + ... + 808062322.

It is an arithmetic number, because the mean of its divisors is an integer number (57834952560).

Almost surely, 2^{3533646974728} 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 3533646974728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3701436963840).

3533646974728 is an abundant number, since it is smaller than the sum of its proper divisors (3869226952952).

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

3533646974728 is a wasteful number, since it uses less digits than its factorization.

3533646974728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5639 (or 5635 counting only the distinct ones).

The product of its digits is 548674560, while the sum is 67.

The spelling of 3533646974728 in words is "three trillion, five hundred thirty-three billion, six hundred forty-six million, nine hundred seventy-four thousand, seven hundred twenty-eight".