866763317428064 has 24 divisors (see below), whose sum is σ = 1950217464213648. Its totient is φ = 371469993183360.

The previous prime is 866763317428051. The next prime is 866763317428117. The reversal of 866763317428064 is 460824713367668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1934739547607 + ... + 1934739548054.

It is an arithmetic number, because the mean of its divisors is an integer number (81259061008902).

Almost surely, 2^{866763317428064} is an apocalyptic number.

It is an amenable number.

866763317428064 is an abundant number, since it is smaller than the sum of its proper divisors (1083454146785584).

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

866763317428064 is a wasteful number, since it uses less digits than its factorization.

866763317428064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3869479095678 (or 3869479095670 counting only the distinct ones).

The product of its (nonzero) digits is 1170505728, while the sum is 71.

The spelling of 866763317428064 in words is "eight hundred sixty-six trillion, seven hundred sixty-three billion, three hundred seventeen million, four hundred twenty-eight thousand, sixty-four".