2805671109 has 16 divisors (see below), whose sum is σ = 3963097152. Its totient is φ = 1759465728.

The previous prime is 2805671093. The next prime is 2805671117. The reversal of 2805671109 is 9011765082.

2805671109 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2805671109 - 2⁴ = 2805671093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2805671189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86682 + ... + 114564.

It is an arithmetic number, because the mean of its divisors is an integer number (247693572).

Almost surely, 2^2805671109 is an apocalyptic number.

It is an amenable number.

2805671109 is a deficient number, since it is larger than the sum of its proper divisors (1157426043).

2805671109 is a wasteful number, since it uses less digits than its factorization.

2805671109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29876.

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 2805671109 is about 52968.5860581534. The cubic root of 2805671109 is about 1410.4106761096.

The spelling of 2805671109 in words is "two billion, eight hundred five million, six hundred seventy-one thousand, one hundred nine".