9457386689 has 2 divisors, whose sum is σ = 9457386690. Its totient is φ = 9457386688.

The previous prime is 9457386571. The next prime is 9457386691. The reversal of 9457386689 is 9866837549.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9428410000 + 28976689 = 97100^2 + 5383^2 .

It is an emirp because it is prime and its reverse (9866837549) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9457386689 is a prime.

Together with 9457386691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9457386989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4728693344 + 4728693345.

It is an arithmetic number, because the mean of its divisors is an integer number (4728693345).

Almost surely, 2^9457386689 is an apocalyptic number.

It is an amenable number.

9457386689 is a deficient number, since it is larger than the sum of its proper divisors (1).

9457386689 is an equidigital number, since it uses as much as digits as its factorization.

9457386689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78382080, while the sum is 65.

The square root of 9457386689 is about 97249.0960832027. The cubic root of 9457386689 is about 2114.7403354553.

The spelling of 9457386689 in words is "nine billion, four hundred fifty-seven million, three hundred eighty-six thousand, six hundred eighty-nine".