2050868009 has 4 divisors (see below), whose sum is σ = 2067016704. Its totient is φ = 2034719316.

The previous prime is 2050867963. The next prime is 2050868021. The reversal of 2050868009 is 9008680502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9008680502 = 2 ⋅4504340251.

It is a cyclic number.

It is not a de Polignac number, because 2050868009 - 2²⁰ = 2049819433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2050868089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8074157 + ... + 8074410.

It is an arithmetic number, because the mean of its divisors is an integer number (516754176).

Almost surely, 2^2050868009 is an apocalyptic number.

It is an amenable number.

2050868009 is a deficient number, since it is larger than the sum of its proper divisors (16148695).

2050868009 is a wasteful number, since it uses less digits than its factorization.

2050868009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16148694.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 2050868009 is about 45286.5102320768. The cubic root of 2050868009 is about 1270.5133620136.

The spelling of 2050868009 in words is "two billion, fifty million, eight hundred sixty-eight thousand, nine".