3543352511521 has 2 divisors, whose sum is σ = 3543352511522. Its totient is φ = 3543352511520.

The previous prime is 3543352511519. The next prime is 3543352511557. The reversal of 3543352511521 is 1251152533453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3499746719121 + 43605792400 = 1870761^2 + 208820^2 .

It is a cyclic number.

It is not a de Polignac number, because 3543352511521 - 2¹ = 3543352511519 is a prime.

Together with 3543352511519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3543352511561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1771676255760 + 1771676255761.

It is an arithmetic number, because the mean of its divisors is an integer number (1771676255761).

Almost surely, 2^{3543352511521} is an apocalyptic number.

It is an amenable number.

3543352511521 is a deficient number, since it is larger than the sum of its proper divisors (1).

3543352511521 is an equidigital number, since it uses as much as digits as its factorization.

3543352511521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 270000, while the sum is 40.

The spelling of 3543352511521 in words is "three trillion, five hundred forty-three billion, three hundred fifty-two million, five hundred eleven thousand, five hundred twenty-one".