634863039008 has 96 divisors (see below), whose sum is σ = 1367844371712. Its totient is φ = 287659008000.

The previous prime is 634863038993. The next prime is 634863039017. The reversal of 634863039008 is 800930368436.

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, 166062185 + ... + 166066007.

It is an arithmetic number, because the mean of its divisors is an integer number (14248378872).

Almost surely, 2^634863039008 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 634863039008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683922185856).

634863039008 is an abundant number, since it is smaller than the sum of its proper divisors (732981332704).

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

634863039008 is a wasteful number, since it uses less digits than its factorization.

634863039008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5218 (or 5210 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 50.

The spelling of 634863039008 in words is "six hundred thirty-four billion, eight hundred sixty-three million, thirty-nine thousand, eight".