720341626769 has 2 divisors, whose sum is σ = 720341626770. Its totient is φ = 720341626768.

The previous prime is 720341626687. The next prime is 720341626787. The reversal of 720341626769 is 967626143027.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 668366746369 + 51974880400 = 817537^2 + 227980^2 .

It is a cyclic number.

It is not a de Polignac number, because 720341626769 - 2³² = 716046659473 is a prime.

It is a super-2 number, since 2×720341626769² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 720341626769.

It is not a weakly prime, because it can be changed into another prime (720341626799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360170813384 + 360170813385.

It is an arithmetic number, because the mean of its divisors is an integer number (360170813385).

Almost surely, 2^720341626769 is an apocalyptic number.

It is an amenable number.

720341626769 is a deficient number, since it is larger than the sum of its proper divisors (1).

720341626769 is an equidigital number, since it uses as much as digits as its factorization.

720341626769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 53.

The spelling of 720341626769 in words is "seven hundred twenty billion, three hundred forty-one million, six hundred twenty-six thousand, seven hundred sixty-nine".