6515782713 has 12 divisors (see below), whose sum is σ = 10267294128. Its totient is φ = 3948959160.

The previous prime is 6515782673. The next prime is 6515782717. The reversal of 6515782713 is 3172875156.

It is a happy number.

6515782713 is a `hidden beast` number, since 6 + 5 + 1 + 578 + 2 + 71 + 3 = 666.

It is not a de Polignac number, because 6515782713 - 2⁹ = 6515782201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6515782717) 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 11 ways as a sum of consecutive naturals, for example, 32907895 + ... + 32908092.

It is an arithmetic number, because the mean of its divisors is an integer number (855607844).

Almost surely, 2^6515782713 is an apocalyptic number.

It is an amenable number.

6515782713 is a deficient number, since it is larger than the sum of its proper divisors (3751511415).

6515782713 is a wasteful number, since it uses less digits than its factorization.

6515782713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65816004 (or 65816001 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The square root of 6515782713 is about 80720.3983699288. The cubic root of 6515782713 is about 1867.7648485952.

The spelling of 6515782713 in words is "six billion, five hundred fifteen million, seven hundred eighty-two thousand, seven hundred thirteen".