866187022474686 has 16 divisors (see below), whose sum is σ = 1889862594490368. Its totient is φ = 262480915901400.

The previous prime is 866187022474639. The next prime is 866187022474717. The reversal of 866187022474686 is 686474220781668.

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, 6562022897470 + ... + 6562022897601.

It is an arithmetic number, because the mean of its divisors is an integer number (118116412155648).

Almost surely, 2^{866187022474686} is an apocalyptic number.

866187022474686 is an abundant number, since it is smaller than the sum of its proper divisors (1023675572015682).

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

866187022474686 is a wasteful number, since it uses less digits than its factorization.

866187022474686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13124045795087.

The product of its (nonzero) digits is 2080899072, while the sum is 75.

The spelling of 866187022474686 in words is "eight hundred sixty-six trillion, one hundred eighty-seven billion, twenty-two million, four hundred seventy-four thousand, six hundred eighty-six".