863312364220 has 12 divisors (see below), whose sum is σ = 1812955964904. Its totient is φ = 345324945680.

The previous prime is 863312364203. The next prime is 863312364223. The reversal of 863312364220 is 22463213368.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863312364223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21582809086 + ... + 21582809125.

It is an arithmetic number, because the mean of its divisors is an integer number (151079663742).

Almost surely, 2^863312364220 is an apocalyptic number.

It is an amenable number.

863312364220 is an abundant number, since it is smaller than the sum of its proper divisors (949643600684).

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

863312364220 is a wasteful number, since it uses less digits than its factorization.

863312364220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43165618220 (or 43165618218 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 40.

Adding to 863312364220 its reverse (22463213368), we get a palindrome (885775577588).

The spelling of 863312364220 in words is "eight hundred sixty-three billion, three hundred twelve million, three hundred sixty-four thousand, two hundred twenty".