863479986732 has 432 divisors, whose sum is σ = 2630781369216. Its totient is φ = 235828454400.

The previous prime is 863479986709. The next prime is 863479986779. The reversal of 863479986732 is 237689974368.

863479986732 is a `hidden beast` number, since 8 + 6 + 3 + 479 + 9 + 86 + 73 + 2 = 666.

863479986732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4092322107 + ... + 4092322317.

It is an arithmetic number, because the mean of its divisors is an integer number (6089771688).

Almost surely, 2^863479986732 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 863479986732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1315390684608).

863479986732 is an abundant number, since it is smaller than the sum of its proper divisors (1767301382484).

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

863479986732 is a wasteful number, since it uses less digits than its factorization.

863479986732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570 (or 354 counting only the distinct ones).

The product of its digits is 658409472, while the sum is 72.

The spelling of 863479986732 in words is "eight hundred sixty-three billion, four hundred seventy-nine million, nine hundred eighty-six thousand, seven hundred thirty-two".