82568565678 has 16 divisors (see below), whose sum is σ = 165140369280. Its totient is φ = 27522315576.

The previous prime is 82568565659. The next prime is 82568565713. The reversal of 82568565678 is 87656586528.

It is a congruent number.

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, 308901 + ... + 510447.

It is an arithmetic number, because the mean of its divisors is an integer number (10321273080).

Almost surely, 2^82568565678 is an apocalyptic number.

82568565678 is an abundant number, since it is smaller than the sum of its proper divisors (82571803602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82568565678 is a wasteful number, since it uses less digits than its factorization.

82568565678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269831.

The product of its digits is 193536000, while the sum is 66.

The spelling of 82568565678 in words is "eighty-two billion, five hundred sixty-eight million, five hundred sixty-five thousand, six hundred seventy-eight".