706571261009 has 2 divisors, whose sum is σ = 706571261010. Its totient is φ = 706571261008.

The previous prime is 706571260991. The next prime is 706571261017. The reversal of 706571261009 is 900162175607.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 703874016784 + 2697244225 = 838972^2 + 51935^2 .

It is an emirp because it is prime and its reverse (900162175607) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 706571261009 - 2⁸ = 706571260753 is a prime.

It is not a weakly prime, because it can be changed into another prime (706571261609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353285630504 + 353285630505.

It is an arithmetic number, because the mean of its divisors is an integer number (353285630505).

Almost surely, 2^706571261009 is an apocalyptic number.

It is an amenable number.

706571261009 is a deficient number, since it is larger than the sum of its proper divisors (1).

706571261009 is an equidigital number, since it uses as much as digits as its factorization.

706571261009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 44.

The spelling of 706571261009 in words is "seven hundred six billion, five hundred seventy-one million, two hundred sixty-one thousand, nine".