866763546746392 has 8 divisors (see below), whose sum is σ = 1625181650149500. Its totient is φ = 433381773373192.

The previous prime is 866763546746381. The next prime is 866763546746393. The reversal of 866763546746392 is 293647645367668.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866763546746393) by changing a digit.

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 as a sum of consecutive naturals, namely, 54172721671642 + ... + 54172721671657.

Almost surely, 2^{866763546746392} is an apocalyptic number.

It is an amenable number.

866763546746392 is a deficient number, since it is larger than the sum of its proper divisors (758418103403108).

866763546746392 is a wasteful number, since it uses less digits than its factorization.

866763546746392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108345443343305 (or 108345443343301 counting only the distinct ones).

The product of its digits is 39504568320, while the sum is 82.

The spelling of 866763546746392 in words is "eight hundred sixty-six trillion, seven hundred sixty-three billion, five hundred forty-six million, seven hundred forty-six thousand, three hundred ninety-two".