866827822467268 has 12 divisors (see below), whose sum is σ = 1517105124230332. Its totient is φ = 433369215544320.

The previous prime is 866827822467239. The next prime is 866827822467287. The reversal of 866827822467268 is 862764228728668.

It can be written as a sum of positive squares in 2 ways, for example, as 120242585008324 + 746585237458944 = 10965518^2 + 27323712^2 .

It is a hoax number, since the sum of its digits (82) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 866827822467191 and 866827822467200.

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, 11173878693 + ... + 11173956268.

Almost surely, 2^{866827822467268} is an apocalyptic number.

It is an amenable number.

866827822467268 is a deficient number, since it is larger than the sum of its proper divisors (650277301763064).

866827822467268 is a wasteful number, since it uses less digits than its factorization.

866827822467268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22347844662 (or 22347844660 counting only the distinct ones).

The product of its digits is 16647192576, while the sum is 82.

The spelling of 866827822467268 in words is "eight hundred sixty-six trillion, eight hundred twenty-seven billion, eight hundred twenty-two million, four hundred sixty-seven thousand, two hundred sixty-eight".