6487652865839 has 8 divisors (see below), whose sum is σ = 7054935708528. Its totient is φ = 5940998490240.

The previous prime is 6487652865817. The next prime is 6487652865857. The reversal of 6487652865839 is 9385682567846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6487652865839 - 2²⁰ = 6487651817263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6487652865839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6487652865139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5157116117 + ... + 5157117374.

It is an arithmetic number, because the mean of its divisors is an integer number (881866963566).

Almost surely, 2^{6487652865839} is an apocalyptic number.

6487652865839 is a deficient number, since it is larger than the sum of its proper divisors (567282842689).

6487652865839 is a wasteful number, since it uses less digits than its factorization.

6487652865839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10314233545.

The product of its digits is 4180377600, while the sum is 77.

The spelling of 6487652865839 in words is "six trillion, four hundred eighty-seven billion, six hundred fifty-two million, eight hundred sixty-five thousand, eight hundred thirty-nine".