866786383716264 has 96 divisors (see below), whose sum is σ = 2573828915112000. Its totient is φ = 261342628208640.

The previous prime is 866786383716241. The next prime is 866786383716287. The reversal of 866786383716264 is 462617383687668.

866786383716264 is a `hidden beast` number, since 8 + 6 + 6 + 78 + 6 + 383 + 7 + 162 + 6 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (866786383716241) and next prime (866786383716287).

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 23 ways as a sum of consecutive naturals, for example, 2749659609 + ... + 2749974824.

It is an arithmetic number, because the mean of its divisors is an integer number (26810717865750).

Almost surely, 2^{866786383716264} is an apocalyptic number.

It is an amenable number.

866786383716264 is an abundant number, since it is smaller than the sum of its proper divisors (1707042531395736).

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

866786383716264 is a wasteful number, since it uses less digits than its factorization.

866786383716264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5499634655 (or 5499634648 counting only the distinct ones).

The product of its digits is 14046068736, while the sum is 81.

The spelling of 866786383716264 in words is "eight hundred sixty-six trillion, seven hundred eighty-six billion, three hundred eighty-three million, seven hundred sixteen thousand, two hundred sixty-four".