6408444849 has 16 divisors (see below), whose sum is σ = 9083369280. Its totient is φ = 4007361600.

The previous prime is 6408444839. The next prime is 6408444871. The reversal of 6408444849 is 9484448046.

It is not a de Polignac number, because 6408444849 - 2⁹ = 6408444337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6408444839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 550822 + ... + 562335.

It is an arithmetic number, because the mean of its divisors is an integer number (567710580).

Almost surely, 2^6408444849 is an apocalyptic number.

It is an amenable number.

6408444849 is a deficient number, since it is larger than the sum of its proper divisors (2674924431).

6408444849 is a wasteful number, since it uses less digits than its factorization.

6408444849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113280.

The product of its (nonzero) digits is 3538944, while the sum is 51.

The square root of 6408444849 is about 80052.7629067230. The cubic root of 6408444849 is about 1857.4517894654.

The spelling of 6408444849 in words is "six billion, four hundred eight million, four hundred forty-four thousand, eight hundred forty-nine".