3524053561621 has 2 divisors, whose sum is σ = 3524053561622. Its totient is φ = 3524053561620.

The previous prime is 3524053561601. The next prime is 3524053561649. The reversal of 3524053561621 is 1261653504253.

3524053561621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3521575015396 + 2478546225 = 1876586^2 + 49785^2 .

It is a cyclic number.

It is not a de Polignac number, because 3524053561621 - 2⁷ = 3524053561493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3524053561601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1762026780810 + 1762026780811.

It is an arithmetic number, because the mean of its divisors is an integer number (1762026780811).

Almost surely, 2^{3524053561621} is an apocalyptic number.

It is an amenable number.

3524053561621 is a deficient number, since it is larger than the sum of its proper divisors (1).

3524053561621 is an equidigital number, since it uses as much as digits as its factorization.

3524053561621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 3524053561621 in words is "three trillion, five hundred twenty-four billion, fifty-three million, five hundred sixty-one thousand, six hundred twenty-one".