9657740123 has 2 divisors, whose sum is σ = 9657740124. Its totient is φ = 9657740122.

The previous prime is 9657740077. The next prime is 9657740207. The reversal of 9657740123 is 3210477569.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9657740123 - 2⁸ = 9657739867 is a prime.

It is not a weakly prime, because it can be changed into another prime (9657740023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4828870061 + 4828870062.

It is an arithmetic number, because the mean of its divisors is an integer number (4828870062).

Almost surely, 2^9657740123 is an apocalyptic number.

9657740123 is a deficient number, since it is larger than the sum of its proper divisors (1).

9657740123 is an equidigital number, since it uses as much as digits as its factorization.

9657740123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 9657740123 is about 98273.8018141152. The cubic root of 9657740123 is about 2129.5695988717.

The spelling of 9657740123 in words is "nine billion, six hundred fifty-seven million, seven hundred forty thousand, one hundred twenty-three".