9118919129 has 2 divisors, whose sum is σ = 9118919130. Its totient is φ = 9118919128.

The previous prime is 9118919077. The next prime is 9118919137. The reversal of 9118919129 is 9219198119.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8125219600 + 993699529 = 90140^2 + 31523^2 .

It is a cyclic number.

It is not a de Polignac number, because 9118919129 - 2²⁴ = 9102141913 is a prime.

It is not a weakly prime, because it can be changed into another prime (9118939129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4559459564 + 4559459565.

It is an arithmetic number, because the mean of its divisors is an integer number (4559459565).

Almost surely, 2^9118919129 is an apocalyptic number.

It is an amenable number.

9118919129 is a deficient number, since it is larger than the sum of its proper divisors (1).

9118919129 is an equidigital number, since it uses as much as digits as its factorization.

9118919129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 50.

The square root of 9118919129 is about 95493.0318347889. The cubic root of 9118919129 is about 2089.2053119827.

The spelling of 9118919129 in words is "nine billion, one hundred eighteen million, nine hundred nineteen thousand, one hundred twenty-nine".