720720449759 has 2 divisors, whose sum is σ = 720720449760. Its totient is φ = 720720449758.

The previous prime is 720720449749. The next prime is 720720449791. The reversal of 720720449759 is 957944027027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 720720449759 - 2²⁰ = 720719401183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720720449719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360360224879 + 360360224880.

It is an arithmetic number, because the mean of its divisors is an integer number (360360224880).

Almost surely, 2^720720449759 is an apocalyptic number.

720720449759 is a deficient number, since it is larger than the sum of its proper divisors (1).

720720449759 is an equidigital number, since it uses as much as digits as its factorization.

720720449759 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8890560, while the sum is 56.

The spelling of 720720449759 in words is "seven hundred twenty billion, seven hundred twenty million, four hundred forty-nine thousand, seven hundred fifty-nine".