2609020109 has 16 divisors (see below), whose sum is σ = 2801080320. Its totient is φ = 2425438080.

The previous prime is 2609020103. The next prime is 2609020123. The reversal of 2609020109 is 9010209062.

It is a cyclic number.

It is not a de Polignac number, because 2609020109 - 2²⁴ = 2592242893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2609020103) 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 15 ways as a sum of consecutive naturals, for example, 76217 + ... + 105009.

It is an arithmetic number, because the mean of its divisors is an integer number (175067520).

Almost surely, 2^2609020109 is an apocalyptic number.

It is an amenable number.

2609020109 is a deficient number, since it is larger than the sum of its proper divisors (192060211).

2609020109 is a wasteful number, since it uses less digits than its factorization.

2609020109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28940.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 2609020109 is about 51078.5680006791. The cubic root of 2609020109 is about 1376.6571946641.

The spelling of 2609020109 in words is "two billion, six hundred nine million, twenty thousand, one hundred nine".