6505484421 has 32 divisors (see below), whose sum is σ = 9040268160. Its totient is φ = 4156233984.

The previous prime is 6505484413. The next prime is 6505484471. The reversal of 6505484421 is 1244845056.

It is a happy number.

It is not a de Polignac number, because 6505484421 - 2³ = 6505484413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6505484421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6505484471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9962131 + ... + 9962783.

It is an arithmetic number, because the mean of its divisors is an integer number (282508380).

Almost surely, 2^6505484421 is an apocalyptic number.

It is an amenable number.

6505484421 is a deficient number, since it is larger than the sum of its proper divisors (2534783739).

6505484421 is a wasteful number, since it uses less digits than its factorization.

6505484421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365.

The product of its (nonzero) digits is 153600, while the sum is 39.

The square root of 6505484421 is about 80656.5832465026. The cubic root of 6505484421 is about 1866.7803196355.

The spelling of 6505484421 in words is "six billion, five hundred five million, four hundred eighty-four thousand, four hundred twenty-one".