864832677828816 has 80 divisors (see below), whose sum is σ = 2247253587547200. Its totient is φ = 286587804340224.

The previous prime is 864832677828811. The next prime is 864832677828877. The reversal of 864832677828816 is 618828776238468.

It is a super-3 number, since 3×864832677828816³ (a number of 46 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864832677828811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17163030 + ... + 44991498.

It is an arithmetic number, because the mean of its divisors is an integer number (28090669844340).

Almost surely, 2^{864832677828816} is an apocalyptic number.

It is an amenable number.

864832677828816 is an abundant number, since it is smaller than the sum of its proper divisors (1382420909718384).

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

864832677828816 is a wasteful number, since it uses less digits than its factorization.

864832677828816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27832276 (or 27832270 counting only the distinct ones).

The product of its digits is 16647192576, while the sum is 84.

The spelling of 864832677828816 in words is "eight hundred sixty-four trillion, eight hundred thirty-two billion, six hundred seventy-seven million, eight hundred twenty-eight thousand, eight hundred sixteen".