865778870477060 has 96 divisors (see below), whose sum is σ = 1830848229245952. Its totient is φ = 343892903777280.

The previous prime is 865778870477041. The next prime is 865778870477077. The reversal of 865778870477060 is 60774078877568.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38405652149 + ... + 38405674691.

It is an arithmetic number, because the mean of its divisors is an integer number (19071335721312).

Almost surely, 2^{865778870477060} is an apocalyptic number.

It is an amenable number.

865778870477060 is an abundant number, since it is smaller than the sum of its proper divisors (965069358768892).

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

865778870477060 is a wasteful number, since it uses less digits than its factorization.

865778870477060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29733 (or 29731 counting only the distinct ones).

The product of its (nonzero) digits is 6195732480, while the sum is 80.

The spelling of 865778870477060 in words is "eight hundred sixty-five trillion, seven hundred seventy-eight billion, eight hundred seventy million, four hundred seventy-seven thousand, sixty".