6408444805 has 16 divisors (see below), whose sum is σ = 9170843904. Its totient is φ = 4203302400.

The previous prime is 6408444803. The next prime is 6408444827. The reversal of 6408444805 is 5084448046.

It is not a de Polignac number, because 6408444805 - 2¹ = 6408444803 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 (6408444803) 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, 3979596 + ... + 3981205.

It is an arithmetic number, because the mean of its divisors is an integer number (573177744).

Almost surely, 2^6408444805 is an apocalyptic number.

It is an amenable number.

6408444805 is a deficient number, since it is larger than the sum of its proper divisors (2762399099).

6408444805 is a wasteful number, since it uses less digits than its factorization.

6408444805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7960836.

The product of its (nonzero) digits is 491520, while the sum is 43.

The square root of 6408444805 is about 80052.7626319042. The cubic root of 6408444805 is about 1857.4517852143.

The spelling of 6408444805 in words is "six billion, four hundred eight million, four hundred forty-four thousand, eight hundred five".