868485589493 has 4 divisors (see below), whose sum is σ = 870361368768. Its totient is φ = 866609810220.

The previous prime is 868485589469. The next prime is 868485589507. The reversal of 868485589493 is 394985584868.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 868485589493 - 2¹⁶ = 868485523957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868485589403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 937888943 + ... + 937889868.

It is an arithmetic number, because the mean of its divisors is an integer number (217590342192).

Almost surely, 2^868485589493 is an apocalyptic number.

It is an amenable number.

868485589493 is a deficient number, since it is larger than the sum of its proper divisors (1875779275).

868485589493 is a wasteful number, since it uses less digits than its factorization.

868485589493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875779274.

The product of its digits is 2388787200, while the sum is 77.

The spelling of 868485589493 in words is "eight hundred sixty-eight billion, four hundred eighty-five million, five hundred eighty-nine thousand, four hundred ninety-three".