863663366368 has 96 divisors (see below), whose sum is σ = 1931757660000. Its totient is φ = 376492677120.

The previous prime is 863663366359. The next prime is 863663366399.

863663366368 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×863663366368² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1237078 + ... + 1804906.

It is an arithmetic number, because the mean of its divisors is an integer number (20122475625).

Almost surely, 2^863663366368 is an apocalyptic number.

863663366368 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 863663366368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (965878830000).

863663366368 is an abundant number, since it is smaller than the sum of its proper divisors (1068094293632).

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

863663366368 is a wasteful number, since it uses less digits than its factorization.

863663366368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568028 (or 568020 counting only the distinct ones).

The product of its digits is 241864704, while the sum is 64.

The spelling of 863663366368 in words is "eight hundred sixty-three billion, six hundred sixty-three million, three hundred sixty-six thousand, three hundred sixty-eight".