3645448543403 has 2 divisors, whose sum is σ = 3645448543404. Its totient is φ = 3645448543402.

The previous prime is 3645448543381. The next prime is 3645448543501. The reversal of 3645448543403 is 3043458445463.

3645448543403 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 is a cyclic number.

It is not a de Polignac number, because 3645448543403 - 2⁶ = 3645448543339 is a prime.

It is not a weakly prime, because it can be changed into another prime (3645448243403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1822724271701 + 1822724271702.

It is an arithmetic number, because the mean of its divisors is an integer number (1822724271702).

Almost surely, 2^{3645448543403} is an apocalyptic number.

3645448543403 is a deficient number, since it is larger than the sum of its proper divisors (1).

3645448543403 is an equidigital number, since it uses as much as digits as its factorization.

3645448543403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33177600, while the sum is 53.

The spelling of 3645448543403 in words is "three trillion, six hundred forty-five billion, four hundred forty-eight million, five hundred forty-three thousand, four hundred three".