866788517342284 has 12 divisors (see below), whose sum is σ = 1516881767915808. Its totient is φ = 433393726509200.

The previous prime is 866788517342269. The next prime is 866788517342309. The reversal of 866788517342284 is 482243715887668.

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, 129364387 + ... + 135899674.

It is an arithmetic number, because the mean of its divisors is an integer number (126406813992984).

Almost surely, 2^{866788517342284} is an apocalyptic number.

It is an amenable number.

866788517342284 is a deficient number, since it is larger than the sum of its proper divisors (650093250573524).

866788517342284 is a wasteful number, since it uses less digits than its factorization.

866788517342284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266080976 (or 266080974 counting only the distinct ones).

The product of its digits is 6936330240, while the sum is 79.

The spelling of 866788517342284 in words is "eight hundred sixty-six trillion, seven hundred eighty-eight billion, five hundred seventeen million, three hundred forty-two thousand, two hundred eighty-four".