6787126865 has 8 divisors (see below), whose sum is σ = 8169160128. Its totient is φ = 5413296240.

The previous prime is 6787126813. The next prime is 6787126877. The reversal of 6787126865 is 5686217876.

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

It is not a de Polignac number, because 6787126865 - 2⁸ = 6787126609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6787126865.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2048837 + ... + 2052146.

It is an arithmetic number, because the mean of its divisors is an integer number (1021145016).

Almost surely, 2^6787126865 is an apocalyptic number.

It is an amenable number.

6787126865 is a deficient number, since it is larger than the sum of its proper divisors (1382033263).

6787126865 is a wasteful number, since it uses less digits than its factorization.

6787126865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4101319.

The product of its digits is 6773760, while the sum is 56.

The square root of 6787126865 is about 82384.0206896944. The cubic root of 6787126865 is about 1893.3401983863.

The spelling of 6787126865 in words is "six billion, seven hundred eighty-seven million, one hundred twenty-six thousand, eight hundred sixty-five".