720979366193 has 2 divisors, whose sum is σ = 720979366194. Its totient is φ = 720979366192.

The previous prime is 720979366183. The next prime is 720979366271. The reversal of 720979366193 is 391663979027.

720979366193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 702324450304 + 18654915889 = 838048^2 + 136583^2 .

It is a cyclic number.

It is not a de Polignac number, because 720979366193 - 2¹⁸ = 720979104049 is a prime.

It is a super-2 number, since 2×720979366193² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (720979366123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360489683096 + 360489683097.

It is an arithmetic number, because the mean of its divisors is an integer number (360489683097).

Almost surely, 2^720979366193 is an apocalyptic number.

It is an amenable number.

720979366193 is a deficient number, since it is larger than the sum of its proper divisors (1).

720979366193 is an equidigital number, since it uses as much as digits as its factorization.

720979366193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23147208, while the sum is 62.

The spelling of 720979366193 in words is "seven hundred twenty billion, nine hundred seventy-nine million, three hundred sixty-six thousand, one hundred ninety-three".