6579802865663 has 4 divisors (see below), whose sum is σ = 6669937151568. Its totient is φ = 6489668579760.

The previous prime is 6579802865627. The next prime is 6579802865683. The reversal of 6579802865663 is 3665682089756.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6579802865663 - 2¹⁰ = 6579802864639 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 (6579802865683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (37) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45067142843 + ... + 45067142988.

It is an arithmetic number, because the mean of its divisors is an integer number (1667484287892).

Almost surely, 2^{6579802865663} is an apocalyptic number.

6579802865663 is a deficient number, since it is larger than the sum of its proper divisors (90134285905).

6579802865663 is an equidigital number, since it uses as much as digits as its factorization.

6579802865663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90134285904.

The product of its (nonzero) digits is 783820800, while the sum is 71.

The spelling of 6579802865663 in words is "six trillion, five hundred seventy-nine billion, eight hundred two million, eight hundred sixty-five thousand, six hundred sixty-three".