720228915953 has 2 divisors, whose sum is σ = 720228915954. Its totient is φ = 720228915952.

The previous prime is 720228915907. The next prime is 720228915961. The reversal of 720228915953 is 359519822027.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 670027376704 + 50201539249 = 818552^2 + 224057^2 .

It is a cyclic number.

It is not a de Polignac number, because 720228915953 - 2⁸ = 720228915697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 720228915895 and 720228915904.

It is not a weakly prime, because it can be changed into another prime (720428915953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360114457976 + 360114457977.

It is an arithmetic number, because the mean of its divisors is an integer number (360114457977).

Almost surely, 2^720228915953 is an apocalyptic number.

It is an amenable number.

720228915953 is a deficient number, since it is larger than the sum of its proper divisors (1).

720228915953 is an equidigital number, since it uses as much as digits as its factorization.

720228915953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2721600, while the sum is 53.

The spelling of 720228915953 in words is "seven hundred twenty billion, two hundred twenty-eight million, nine hundred fifteen thousand, nine hundred fifty-three".