866786464110252 has 24 divisors (see below), whose sum is σ = 2311430570960896. Its totient is φ = 247653275460048.

The previous prime is 866786464110247. The next prime is 866786464110283. The reversal of 866786464110252 is 252011464687668.

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 7 ways as a sum of consecutive naturals, for example, 5159443238668 + ... + 5159443238835.

Almost surely, 2^{866786464110252} is an apocalyptic number.

It is an amenable number.

866786464110252 is an abundant number, since it is smaller than the sum of its proper divisors (1444644106850644).

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

866786464110252 is a wasteful number, since it uses less digits than its factorization.

866786464110252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10318886477517 (or 10318886477515 counting only the distinct ones).

The product of its (nonzero) digits is 185794560, while the sum is 66.

The spelling of 866786464110252 in words is "eight hundred sixty-six trillion, seven hundred eighty-six billion, four hundred sixty-four million, one hundred ten thousand, two hundred fifty-two".