6485448445845 has 32 divisors (see below), whose sum is σ = 10738735297920. Its totient is φ = 3338326575360.

The previous prime is 6485448445843. The next prime is 6485448445849. The reversal of 6485448445845 is 5485448445846.

It is not a de Polignac number, because 6485448445845 - 2¹ = 6485448445843 is a prime.

It is a super-2 number, since 2×6485448445845² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6485448445845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6485448445843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1803051 + ... + 4027640.

It is an arithmetic number, because the mean of its divisors is an integer number (335585478060).

Almost surely, 2^{6485448445845} is an apocalyptic number.

It is an amenable number.

6485448445845 is a deficient number, since it is larger than the sum of its proper divisors (4253286852075).

6485448445845 is a wasteful number, since it uses less digits than its factorization.

6485448445845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5833285.

The product of its digits is 1572864000, while the sum is 69.

Subtracting from 6485448445845 its reverse (5485448445846), we obtain a palindrome (999999999999).

The spelling of 6485448445845 in words is "six trillion, four hundred eighty-five billion, four hundred forty-eight million, four hundred forty-five thousand, eight hundred forty-five".