6579251142109 has 4 divisors (see below), whose sum is σ = 6865305539616. Its totient is φ = 6293196744604.

The previous prime is 6579251142103. The next prime is 6579251142181. The reversal of 6579251142109 is 9012411529756.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6579251142109 - 2²⁹ = 6578714271197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6579251142103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143027198719 + ... + 143027198764.

It is an arithmetic number, because the mean of its divisors is an integer number (1716326384904).

Almost surely, 2^{6579251142109} is an apocalyptic number.

It is an amenable number.

6579251142109 is a deficient number, since it is larger than the sum of its proper divisors (286054397507).

6579251142109 is a wasteful number, since it uses less digits than its factorization.

6579251142109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286054397506.

The product of its (nonzero) digits is 1360800, while the sum is 52.

The spelling of 6579251142109 in words is "six trillion, five hundred seventy-nine billion, two hundred fifty-one million, one hundred forty-two thousand, one hundred nine".