706272257309 has 2 divisors, whose sum is σ = 706272257310. Its totient is φ = 706272257308.

The previous prime is 706272257183. The next prime is 706272257357. The reversal of 706272257309 is 903752272607.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 562233031684 + 144039225625 = 749822^2 + 379525^2 .

It is an emirp because it is prime and its reverse (903752272607) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 706272257309 - 2¹² = 706272253213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (706272247309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353136128654 + 353136128655.

It is an arithmetic number, because the mean of its divisors is an integer number (353136128655).

Almost surely, 2^706272257309 is an apocalyptic number.

It is an amenable number.

706272257309 is a deficient number, since it is larger than the sum of its proper divisors (1).

706272257309 is an equidigital number, since it uses as much as digits as its factorization.

706272257309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2222640, while the sum is 50.

The spelling of 706272257309 in words is "seven hundred six billion, two hundred seventy-two million, two hundred fifty-seven thousand, three hundred nine".