2646084605 has 4 divisors (see below), whose sum is σ = 3175301532. Its totient is φ = 2116867680.

The previous prime is 2646084601. The next prime is 2646084643. The reversal of 2646084605 is 5064806462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5064806462 = 2 ⋅2532403231.

It can be written as a sum of positive squares in 2 ways, for example, as 522533881 + 2123550724 = 22859^2 + 46082^2 .

It is not a de Polignac number, because 2646084605 - 2² = 2646084601 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 (2646084601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264608456 + ... + 264608465.

It is an arithmetic number, because the mean of its divisors is an integer number (793825383).

Almost surely, 2^2646084605 is an apocalyptic number.

It is an amenable number.

2646084605 is a deficient number, since it is larger than the sum of its proper divisors (529216927).

2646084605 is an equidigital number, since it uses as much as digits as its factorization.

2646084605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529216926.

The product of its (nonzero) digits is 276480, while the sum is 41.

The square root of 2646084605 is about 51440.1069691734. The cubic root of 2646084605 is about 1383.1456291824.

The spelling of 2646084605 in words is "two billion, six hundred forty-six million, eighty-four thousand, six hundred five".