9128650709 has 2 divisors, whose sum is σ = 9128650710. Its totient is φ = 9128650708.

The previous prime is 9128650703. The next prime is 9128650747. The reversal of 9128650709 is 9070568219.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9034502500 + 94148209 = 95050^2 + 9703^2 .

It is a cyclic number.

It is not a de Polignac number, because 9128650709 - 2¹⁶ = 9128585173 is a prime.

It is a super-3 number, since 3×9128650709³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9128650703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4564325354 + 4564325355.

It is an arithmetic number, because the mean of its divisors is an integer number (4564325355).

Almost surely, 2^9128650709 is an apocalyptic number.

It is an amenable number.

9128650709 is a deficient number, since it is larger than the sum of its proper divisors (1).

9128650709 is an equidigital number, since it uses as much as digits as its factorization.

9128650709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 9128650709 is about 95543.9726461068. The cubic root of 9128650709 is about 2089.9482377693.

The spelling of 9128650709 in words is "nine billion, one hundred twenty-eight million, six hundred fifty thousand, seven hundred nine".