722130673217 has 2 divisors, whose sum is σ = 722130673218. Its totient is φ = 722130673216.

The previous prime is 722130673157. The next prime is 722130673267. The reversal of 722130673217 is 712376031227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 420527607361 + 301603065856 = 648481^2 + 549184^2 .

It is a cyclic number.

It is not a de Polignac number, because 722130673217 - 2¹⁸ = 722130411073 is a prime.

It is a super-2 number, since 2×722130673217² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (722130673267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361065336608 + 361065336609.

It is an arithmetic number, because the mean of its divisors is an integer number (361065336609).

Almost surely, 2^722130673217 is an apocalyptic number.

It is an amenable number.

722130673217 is a deficient number, since it is larger than the sum of its proper divisors (1).

722130673217 is an equidigital number, since it uses as much as digits as its factorization.

722130673217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 148176, while the sum is 41.

The spelling of 722130673217 in words is "seven hundred twenty-two billion, one hundred thirty million, six hundred seventy-three thousand, two hundred seventeen".