2168298009 has 12 divisors (see below), whose sum is σ = 3183330852. Its totient is φ = 1421834400.

The previous prime is 2168298001. The next prime is 2168298029. The reversal of 2168298009 is 9008928612.

It can be written as a sum of positive squares in 2 ways, for example, as 558282384 + 1610015625 = 23628^2 + 40125^2 .

It is not a de Polignac number, because 2168298009 - 2³ = 2168298001 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2168298001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1974222 + ... + 1975319.

It is an arithmetic number, because the mean of its divisors is an integer number (265277571).

Almost surely, 2^2168298009 is an apocalyptic number.

It is an amenable number.

2168298009 is a deficient number, since it is larger than the sum of its proper divisors (1015032843).

2168298009 is a wasteful number, since it uses less digits than its factorization.

2168298009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3949608 (or 3949605 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 2168298009 is about 46564.9869429811. The cubic root of 2168298009 is about 1294.3140245749.

The spelling of 2168298009 in words is "two billion, one hundred sixty-eight million, two hundred ninety-eight thousand, nine".