9641773157 has 2 divisors, whose sum is σ = 9641773158. Its totient is φ = 9641773156.

The previous prime is 9641773039. The next prime is 9641773199. The reversal of 9641773157 is 7513771469.

9641773157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8085786241 + 1555986916 = 89921^2 + 39446^2 .

It is a cyclic number.

It is not a de Polignac number, because 9641773157 - 2⁸ = 9641772901 is a prime.

It is a super-2 number, since 2×9641773157² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9641773657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4820886578 + 4820886579.

It is an arithmetic number, because the mean of its divisors is an integer number (4820886579).

Almost surely, 2^9641773157 is an apocalyptic number.

It is an amenable number.

9641773157 is a deficient number, since it is larger than the sum of its proper divisors (1).

9641773157 is an equidigital number, since it uses as much as digits as its factorization.

9641773157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1111320, while the sum is 50.

The square root of 9641773157 is about 98192.5310652496. The cubic root of 9641773157 is about 2128.3953586287.

The spelling of 9641773157 in words is "nine billion, six hundred forty-one million, seven hundred seventy-three thousand, one hundred fifty-seven".