633989116812 has 24 divisors (see below), whose sum is σ = 1479604000000. Its totient is φ = 211287411216.

The previous prime is 633989116801. The next prime is 633989116861. The reversal of 633989116812 is 218611989336.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5224312 + ... + 5344287.

Almost surely, 2^633989116812 is an apocalyptic number.

It is an amenable number.

633989116812 is an abundant number, since it is smaller than the sum of its proper divisors (845614883188).

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

633989116812 is a wasteful number, since it uses less digits than its factorization.

633989116812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10573605 (or 10573603 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 57.

The spelling of 633989116812 in words is "six hundred thirty-three billion, nine hundred eighty-nine million, one hundred sixteen thousand, eight hundred twelve".