82668288628708 has 12 divisors (see below), whose sum is σ = 144669810157740. Its totient is φ = 41334057155072.

The previous prime is 82668288628661. The next prime is 82668288628747. The reversal of 82668288628708 is 80782688286628.

It can be written as a sum of positive squares in 2 ways, for example, as 48758071359204 + 33910217269504 = 6982698^2 + 5823248^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19632013 + ... + 23468116.

It is an arithmetic number, because the mean of its divisors is an integer number (12055817513145).

Almost surely, 2^{82668288628708} is an apocalyptic number.

It is an amenable number.

82668288628708 is a deficient number, since it is larger than the sum of its proper divisors (62001521529032).

82668288628708 is a wasteful number, since it uses less digits than its factorization.

82668288628708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43579646 (or 43579644 counting only the distinct ones).

The product of its (nonzero) digits is 3170893824, while the sum is 79.

The spelling of 82668288628708 in words is "eighty-two trillion, six hundred sixty-eight billion, two hundred eighty-eight million, six hundred twenty-eight thousand, seven hundred eight".