2489664445 has 16 divisors (see below), whose sum is σ = 3027689280. Its totient is φ = 1965181824.

The previous prime is 2489664409. The next prime is 2489664451. The reversal of 2489664445 is 5444669842.

It is a happy number.

2489664445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2489664445 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2489664392 and 2489664401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102297 + ... + 124273.

It is an arithmetic number, because the mean of its divisors is an integer number (189230580).

Almost surely, 2^2489664445 is an apocalyptic number.

It is an amenable number.

2489664445 is a deficient number, since it is larger than the sum of its proper divisors (538024835).

2489664445 is a wasteful number, since it uses less digits than its factorization.

2489664445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22284.

The product of its digits is 6635520, while the sum is 52.

The square root of 2489664445 is about 49896.5374049142. The cubic root of 2489664445 is about 1355.3358907310.

The spelling of 2489664445 in words is "two billion, four hundred eighty-nine million, six hundred sixty-four thousand, four hundred forty-five".