6506810487 has 16 divisors (see below), whose sum is σ = 9655469280. Its totient is φ = 4330786176.

The previous prime is 6506810467. The next prime is 6506810539. The reversal of 6506810487 is 7840186056.

It is a happy number.

6506810487 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6506810487 - 2¹¹ = 6506808439 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6506810447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180018 + ... + 213119.

It is an arithmetic number, because the mean of its divisors is an integer number (603466830).

Almost surely, 2^6506810487 is an apocalyptic number.

6506810487 is a deficient number, since it is larger than the sum of its proper divisors (3148658793).

6506810487 is a wasteful number, since it uses less digits than its factorization.

6506810487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393759 (or 393753 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 6506810487 is about 80664.8032725550. The cubic root of 6506810487 is about 1866.9071513757.

The spelling of 6506810487 in words is "six billion, five hundred six million, eight hundred ten thousand, four hundred eighty-seven".