868473587365 has 4 divisors (see below), whose sum is σ = 1042168304844. Its totient is φ = 694778869888.

The previous prime is 868473587323. The next prime is 868473587369. The reversal of 868473587365 is 563785374868.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 258476660836 + 609996926529 = 508406^2 + 781023^2 .

It is a cyclic number.

It is not a de Polignac number, because 868473587365 - 2⁷ = 868473587237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 868473587294 and 868473587303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868473587369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86847358732 + ... + 86847358741.

It is an arithmetic number, because the mean of its divisors is an integer number (260542076211).

Almost surely, 2^868473587365 is an apocalyptic number.

It is an amenable number.

868473587365 is a deficient number, since it is larger than the sum of its proper divisors (173694717479).

868473587365 is a wasteful number, since it uses less digits than its factorization.

868473587365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173694717478.

The product of its digits is 812851200, while the sum is 70.

The spelling of 868473587365 in words is "eight hundred sixty-eight billion, four hundred seventy-three million, five hundred eighty-seven thousand, three hundred sixty-five".