2645446445 has 16 divisors (see below), whose sum is σ = 3193197312. Its totient is φ = 2103952320.

The previous prime is 2645446429. The next prime is 2645446451. The reversal of 2645446445 is 5446445462.

It is not a de Polignac number, because 2645446445 - 2⁴ = 2645446429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2645446396 and 2645446405.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 706799 + ... + 710531.

It is an arithmetic number, because the mean of its divisors is an integer number (199574832).

Almost surely, 2^2645446445 is an apocalyptic number.

It is an amenable number.

2645446445 is a deficient number, since it is larger than the sum of its proper divisors (547750867).

2645446445 is a wasteful number, since it uses less digits than its factorization.

2645446445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4532.

The product of its digits is 1843200, while the sum is 44.

The square root of 2645446445 is about 51433.9036531353. The cubic root of 2645446445 is about 1383.0344285074.

The spelling of 2645446445 in words is "two billion, six hundred forty-five million, four hundred forty-six thousand, four hundred forty-five".