9635742497 has 2 divisors, whose sum is σ = 9635742498. Its totient is φ = 9635742496.

The previous prime is 9635742461. The next prime is 9635742527. The reversal of 9635742497 is 7942475369.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6822925201 + 2812817296 = 82601^2 + 53036^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9635742497 is a prime.

It is not a weakly prime, because it can be changed into another prime (9635742437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4817871248 + 4817871249.

It is an arithmetic number, because the mean of its divisors is an integer number (4817871249).

Almost surely, 2^9635742497 is an apocalyptic number.

It is an amenable number.

9635742497 is a deficient number, since it is larger than the sum of its proper divisors (1).

9635742497 is an equidigital number, since it uses as much as digits as its factorization.

9635742497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11430720, while the sum is 56.

The square root of 9635742497 is about 98161.8179181702. The cubic root of 9635742497 is about 2127.9515154481.

The spelling of 9635742497 in words is "nine billion, six hundred thirty-five million, seven hundred forty-two thousand, four hundred ninety-seven".