863163768 has 64 divisors (see below), whose sum is σ = 2324361600. Its totient is φ = 266232960.

The previous prime is 863163739. The next prime is 863163773. The reversal of 863163768 is 867361368.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2403 + ... + 41618.

It is an arithmetic number, because the mean of its divisors is an integer number (36318150).

Almost surely, 2^863163768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 863163768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1162180800).

863163768 is an abundant number, since it is smaller than the sum of its proper divisors (1461197832).

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

863163768 is a wasteful number, since it uses less digits than its factorization.

863163768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44092 (or 44088 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 863163768 is about 29379.6488746888. The cubic root of 863163768 is about 952.1332552447.

The spelling of 863163768 in words is "eight hundred sixty-three million, one hundred sixty-three thousand, seven hundred sixty-eight".