9418072117 has 2 divisors, whose sum is σ = 9418072118. Its totient is φ = 9418072116.

The previous prime is 9418072091. The next prime is 9418072121. The reversal of 9418072117 is 7112708149.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9129038116 + 289034001 = 95546^2 + 17001^2 .

It is a cyclic number.

It is not a de Polignac number, because 9418072117 - 2¹⁵ = 9418039349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9418072117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9418072127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4709036058 + 4709036059.

It is an arithmetic number, because the mean of its divisors is an integer number (4709036059).

Almost surely, 2^9418072117 is an apocalyptic number.

It is an amenable number.

9418072117 is a deficient number, since it is larger than the sum of its proper divisors (1).

9418072117 is an equidigital number, since it uses as much as digits as its factorization.

9418072117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 9418072117 is about 97046.7522228333. The cubic root of 9418072117 is about 2111.8059242968.

The spelling of 9418072117 in words is "nine billion, four hundred eighteen million, seventy-two thousand, one hundred seventeen".