5449867209 has 12 divisors (see below), whose sum is σ = 7873833396. Its totient is φ = 3632412672.

The previous prime is 5449867201. The next prime is 5449867211. The reversal of 5449867209 is 9027689445.

5449867209 is a `hidden beast` number, since 544 + 98 + 6 + 7 + 2 + 0 + 9 = 666.

5449867209 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2174823225 + 3275043984 = 46635^2 + 57228^2 .

It is not a de Polignac number, because 5449867209 - 2³ = 5449867201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5449867201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26472 + ... + 107705.

It is an arithmetic number, because the mean of its divisors is an integer number (656152783).

Almost surely, 2^5449867209 is an apocalyptic number.

It is an amenable number.

5449867209 is a deficient number, since it is larger than the sum of its proper divisors (2423966187).

5449867209 is a wasteful number, since it uses less digits than its factorization.

5449867209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138696 (or 138693 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The square root of 5449867209 is about 73823.2159215514. The cubic root of 5449867209 is about 1759.7945706554.

The spelling of 5449867209 in words is "five billion, four hundred forty-nine million, eight hundred sixty-seven thousand, two hundred nine".