720962231968393 has 2 divisors, whose sum is σ = 720962231968394. Its totient is φ = 720962231968392.

The previous prime is 720962231968369. The next prime is 720962231968481. The reversal of 720962231968393 is 393869132269027.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 715100976442384 + 5861255526009 = 26741372^2 + 2421003^2 .

It is an emirp because it is prime and its reverse (393869132269027) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 720962231968393 - 2⁹ = 720962231967881 is a prime.

It is not a weakly prime, because it can be changed into another prime (720962231968793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360481115984196 + 360481115984197.

It is an arithmetic number, because the mean of its divisors is an integer number (360481115984197).

Almost surely, 2^{720962231968393} is an apocalyptic number.

It is an amenable number.

720962231968393 is a deficient number, since it is larger than the sum of its proper divisors (1).

720962231968393 is an equidigital number, since it uses as much as digits as its factorization.

720962231968393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317447424, while the sum is 70.

The spelling of 720962231968393 in words is "seven hundred twenty trillion, nine hundred sixty-two billion, two hundred thirty-one million, nine hundred sixty-eight thousand, three hundred ninety-three".