6438455485 has 16 divisors (see below), whose sum is σ = 9632598912. Its totient is φ = 4013582400.

The previous prime is 6438455483. The next prime is 6438455519. The reversal of 6438455485 is 5845548346.

It is not a de Polignac number, because 6438455485 - 2¹ = 6438455483 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 (6438455483) by changing a digit.

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, 8361246 + ... + 8362015.

It is an arithmetic number, because the mean of its divisors is an integer number (602037432).

Almost surely, 2^6438455485 is an apocalyptic number.

It is an amenable number.

6438455485 is a deficient number, since it is larger than the sum of its proper divisors (3194143427).

6438455485 is a wasteful number, since it uses less digits than its factorization.

6438455485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16723284.

The product of its digits is 9216000, while the sum is 52.

The square root of 6438455485 is about 80239.9868207866. The cubic root of 6438455485 is about 1860.3467466429.

The spelling of 6438455485 in words is "six billion, four hundred thirty-eight million, four hundred fifty-five thousand, four hundred eighty-five".