866786483205434 has 16 divisors (see below), whose sum is σ = 1418639913557280. Its totient is φ = 393921069350160.

The previous prime is 866786483205359. The next prime is 866786483205439. The reversal of 866786483205434 is 434502384687668.

It is not an unprimeable number, because it can be changed into a prime (866786483205439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3639210824 + ... + 3639448995.

It is an arithmetic number, because the mean of its divisors is an integer number (88664994597330).

Almost surely, 2^{866786483205434} is an apocalyptic number.

866786483205434 is a deficient number, since it is larger than the sum of its proper divisors (551853430351846).

866786483205434 is a wasteful number, since it uses less digits than its factorization.

866786483205434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7278665245.

The product of its (nonzero) digits is 4459069440, while the sum is 74.

The spelling of 866786483205434 in words is "eight hundred sixty-six trillion, seven hundred eighty-six billion, four hundred eighty-three million, two hundred five thousand, four hundred thirty-four".