866786484653454 has 8 divisors (see below), whose sum is σ = 1733572969306920. Its totient is φ = 288928828217816.

The previous prime is 866786484653417. The next prime is 866786484653473. The reversal of 866786484653454 is 454356484687668.

It is a sphenic number, since it is the product of 3 distinct primes.

866786484653454 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72232207054449 + ... + 72232207054460.

It is an arithmetic number, because the mean of its divisors is an integer number (216696621163365).

Almost surely, 2^{866786484653454} is an apocalyptic number.

866786484653454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

866786484653454 is a wasteful number, since it uses less digits than its factorization.

866786484653454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144464414108914.

The product of its digits is 89181388800, while the sum is 84.

The spelling of 866786484653454 in words is "eight hundred sixty-six trillion, seven hundred eighty-six billion, four hundred eighty-four million, six hundred fifty-three thousand, four hundred fifty-four".