868600717020 has 72 divisors (see below), whose sum is σ = 2637131908320. Its totient is φ = 231417943680.

The previous prime is 868600717013. The next prime is 868600717099. The reversal of 868600717020 is 20717006868.

868600717020 is a `hidden beast` number, since 8 + 6 + 8 + 600 + 7 + 17 + 0 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1976016 + ... + 2375255.

It is an arithmetic number, because the mean of its divisors is an integer number (36626832060).

Almost surely, 2^868600717020 is an apocalyptic number.

It is an amenable number.

868600717020 is an abundant number, since it is smaller than the sum of its proper divisors (1768531191300).

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

868600717020 is a wasteful number, since it uses less digits than its factorization.

868600717020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4352395 (or 4352390 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 868600717020 in words is "eight hundred sixty-eight billion, six hundred million, seven hundred seventeen thousand, twenty".