3544720668799 has 2 divisors, whose sum is σ = 3544720668800. Its totient is φ = 3544720668798.

The previous prime is 3544720668791. The next prime is 3544720668859. The reversal of 3544720668799 is 9978660274453.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3544720668799 - 2³ = 3544720668791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3544720668791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1772360334399 + 1772360334400.

It is an arithmetic number, because the mean of its divisors is an integer number (1772360334400).

Almost surely, 2^{3544720668799} is an apocalyptic number.

3544720668799 is a deficient number, since it is larger than the sum of its proper divisors (1).

3544720668799 is an equidigital number, since it uses as much as digits as its factorization.

3544720668799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 548674560, while the sum is 70.

The spelling of 3544720668799 in words is "three trillion, five hundred forty-four billion, seven hundred twenty million, six hundred sixty-eight thousand, seven hundred ninety-nine".