866824756185268 has 12 divisors (see below), whose sum is σ = 1517023107990180. Its totient is φ = 433389582473792.

The previous prime is 866824756185139. The next prime is 866824756185359. The reversal of 866824756185268 is 862581657428668.

It can be written as a sum of positive squares in 2 ways, for example, as 183597405235344 + 683227350949924 = 13549812^2 + 26138618^2 .

It is a junction number, because it is equal to n+sod(n) for n = 866824756185191 and 866824756185200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5698819153 + ... + 5698971256.

It is an arithmetic number, because the mean of its divisors is an integer number (126418592332515).

Almost surely, 2^{866824756185268} is an apocalyptic number.

It is an amenable number.

866824756185268 is a deficient number, since it is larger than the sum of its proper divisors (650198351804912).

866824756185268 is a wasteful number, since it uses less digits than its factorization.

866824756185268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11397809426 (or 11397809424 counting only the distinct ones).

The product of its digits is 14863564800, while the sum is 82.

The spelling of 866824756185268 in words is "eight hundred sixty-six trillion, eight hundred twenty-four billion, seven hundred fifty-six million, one hundred eighty-five thousand, two hundred sixty-eight".