9863775697 has 2 divisors, whose sum is σ = 9863775698. Its totient is φ = 9863775696.

The previous prime is 9863775689. The next prime is 9863775707. The reversal of 9863775697 is 7965773689.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9847783696 + 15992001 = 99236^2 + 3999^2 .

It is a cyclic number.

It is not a de Polignac number, because 9863775697 - 2³ = 9863775689 is a prime.

It is not a weakly prime, because it can be changed into another prime (9863775617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4931887848 + 4931887849.

It is an arithmetic number, because the mean of its divisors is an integer number (4931887849).

Almost surely, 2^9863775697 is an apocalyptic number.

It is an amenable number.

9863775697 is a deficient number, since it is larger than the sum of its proper divisors (1).

9863775697 is an equidigital number, since it uses as much as digits as its factorization.

9863775697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120022560, while the sum is 67.

The square root of 9863775697 is about 99316.5429170790. The cubic root of 9863775697 is about 2144.6070497649.

The spelling of 9863775697 in words is "nine billion, eight hundred sixty-three million, seven hundred seventy-five thousand, six hundred ninety-seven".