6505309682 has 16 divisors (see below), whose sum is σ = 9799908504. Its totient is φ = 3238704000.

The previous prime is 6505309651. The next prime is 6505309687. The reversal of 6505309682 is 2869035056.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 901140361 + 5604169321 = 30019^2 + 74861^2 .

It is a super-2 number, since 2×6505309682² = 84638108117445882248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6505309687) 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 7 ways as a sum of consecutive naturals, for example, 448382 + ... + 462662.

Almost surely, 2^6505309682 is an apocalyptic number.

6505309682 is a deficient number, since it is larger than the sum of its proper divisors (3294598822).

6505309682 is a wasteful number, since it uses less digits than its factorization.

6505309682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15245.

The product of its (nonzero) digits is 388800, while the sum is 44.

The square root of 6505309682 is about 80655.5000108486. The cubic root of 6505309682 is about 1866.7636054178.

The spelling of 6505309682 in words is "six billion, five hundred five million, three hundred nine thousand, six hundred eighty-two".