863601039852 has 24 divisors (see below), whose sum is σ = 2121125361600. Its totient is φ = 272716117776.

The previous prime is 863601039799. The next prime is 863601039857. The reversal of 863601039852 is 258930106368.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 863601039795 and 863601039804.

It is not an unprimeable number, because it can be changed into a prime (863601039857) 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 7 ways as a sum of consecutive naturals, for example, 1893861702 + ... + 1893862157.

It is an arithmetic number, because the mean of its divisors is an integer number (88380223400).

Almost surely, 2^863601039852 is an apocalyptic number.

It is an amenable number.

863601039852 is an abundant number, since it is smaller than the sum of its proper divisors (1257524321748).

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

863601039852 is a wasteful number, since it uses less digits than its factorization.

863601039852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3787723885 (or 3787723883 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 863601039852 in words is "eight hundred sixty-three billion, six hundred one million, thirty-nine thousand, eight hundred fifty-two".