70232661209 has 2 divisors, whose sum is σ = 70232661210. Its totient is φ = 70232661208.

The previous prime is 70232661197. The next prime is 70232661223. The reversal of 70232661209 is 90216623207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54415825984 + 15816835225 = 233272^2 + 125765^2 .

It is an emirp because it is prime and its reverse (90216623207) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70232661209 - 2⁴ = 70232661193 is a prime.

It is not a weakly prime, because it can be changed into another prime (70232661259) 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, 35116330604 + 35116330605.

It is an arithmetic number, because the mean of its divisors is an integer number (35116330605).

Almost surely, 2^70232661209 is an apocalyptic number.

It is an amenable number.

70232661209 is a deficient number, since it is larger than the sum of its proper divisors (1).

70232661209 is an equidigital number, since it uses as much as digits as its factorization.

70232661209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 70232661209 in words is "seventy billion, two hundred thirty-two million, six hundred sixty-one thousand, two hundred nine".