2018992109 has 2 divisors, whose sum is σ = 2018992110. Its totient is φ = 2018992108.

The previous prime is 2018992103. The next prime is 2018992189. The reversal of 2018992109 is 9012998102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1341170884 + 677821225 = 36622^2 + 26035^2 .

It is a cyclic number.

It is not a de Polignac number, because 2018992109 - 2¹⁶ = 2018926573 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2018992103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009496054 + 1009496055.

It is an arithmetic number, because the mean of its divisors is an integer number (1009496055).

Almost surely, 2^2018992109 is an apocalyptic number.

It is an amenable number.

2018992109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2018992109 is an equidigital number, since it uses as much as digits as its factorization.

2018992109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 2018992109 is about 44933.1960692760. The cubic root of 2018992109 is about 1263.8965853427.

The spelling of 2018992109 in words is "two billion, eighteen million, nine hundred ninety-two thousand, one hundred nine".