9238965678949 has 2 divisors, whose sum is σ = 9238965678950. Its totient is φ = 9238965678948.

The previous prime is 9238965678941. The next prime is 9238965678991. The reversal of 9238965678949 is 9498765698329.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8976872876449 + 262092802500 = 2996143^2 + 511950^2 .

It is an emirp because it is prime and its reverse (9498765698329) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9238965678949 - 2³ = 9238965678941 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9238965678941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4619482839474 + 4619482839475.

It is an arithmetic number, because the mean of its divisors is an integer number (4619482839475).

Almost surely, 2^{9238965678949} is an apocalyptic number.

It is an amenable number.

9238965678949 is a deficient number, since it is larger than the sum of its proper divisors (1).

9238965678949 is an equidigital number, since it uses as much as digits as its factorization.

9238965678949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12697896960, while the sum is 85.

The spelling of 9238965678949 in words is "nine trillion, two hundred thirty-eight billion, nine hundred sixty-five million, six hundred seventy-eight thousand, nine hundred forty-nine".