2086609049 has 4 divisors (see below), whose sum is σ = 2384696064. Its totient is φ = 1788522036.

The previous prime is 2086609027. The next prime is 2086609069. The reversal of 2086609049 is 9409066802.

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.

It is not a de Polignac number, because 2086609049 - 2²⁰ = 2085560473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2086609009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149043497 + ... + 149043510.

It is an arithmetic number, because the mean of its divisors is an integer number (596174016).

Almost surely, 2^2086609049 is an apocalyptic number.

It is an amenable number.

2086609049 is a deficient number, since it is larger than the sum of its proper divisors (298087015).

2086609049 is an equidigital number, since it uses as much as digits as its factorization.

2086609049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298087014.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 2086609049 is about 45679.4160317314. The cubic root of 2086609049 is about 1277.8514266087.

The spelling of 2086609049 in words is "two billion, eighty-six million, six hundred nine thousand, forty-nine".