868805788764 has 24 divisors (see below), whose sum is σ = 2027487255808. Its totient is φ = 289562822640.

The previous prime is 868805788751. The next prime is 868805788817. The reversal of 868805788764 is 467887508868.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4795732 + ... + 4973595.

Almost surely, 2^868805788764 is an apocalyptic number.

It is an amenable number.

868805788764 is an abundant number, since it is smaller than the sum of its proper divisors (1158681467044).

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

868805788764 is a wasteful number, since it uses less digits than its factorization.

868805788764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9776745 (or 9776743 counting only the distinct ones).

The product of its (nonzero) digits is 1156055040, while the sum is 75.

The spelling of 868805788764 in words is "eight hundred sixty-eight billion, eight hundred five million, seven hundred eighty-eight thousand, seven hundred sixty-four".