9116351989 has 2 divisors, whose sum is σ = 9116351990. Its totient is φ = 9116351988.

The previous prime is 9116351917. The next prime is 9116352023. The reversal of 9116351989 is 9891536119.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5175651364 + 3940700625 = 71942^2 + 62775^2 .

It is a cyclic number.

It is not a de Polignac number, because 9116351989 - 2¹⁵ = 9116319221 is a prime.

It is a super-2 number, since 2×9116351989² (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 (9116351689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4558175994 + 4558175995.

It is an arithmetic number, because the mean of its divisors is an integer number (4558175995).

Almost surely, 2^9116351989 is an apocalyptic number.

It is an amenable number.

9116351989 is a deficient number, since it is larger than the sum of its proper divisors (1).

9116351989 is an equidigital number, since it uses as much as digits as its factorization.

9116351989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 524880, while the sum is 52.

The square root of 9116351989 is about 95479.5893843286. The cubic root of 9116351989 is about 2089.0092439395.

The spelling of 9116351989 in words is "nine billion, one hundred sixteen million, three hundred fifty-one thousand, nine hundred eighty-nine".