634851912 has 32 divisors (see below), whose sum is σ = 1595450880. Its totient is φ = 210507840.

The previous prime is 634851907. The next prime is 634851941. The reversal of 634851912 is 219158436.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64663 + ... + 73830.

It is an arithmetic number, because the mean of its divisors is an integer number (49857840).

Almost surely, 2^634851912 is an apocalyptic number.

It is an amenable number.

634851912 is an abundant number, since it is smaller than the sum of its proper divisors (960598968).

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

634851912 is a wasteful number, since it uses less digits than its factorization.

634851912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138693 (or 138689 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 634851912 is about 25196.2678188656. The cubic root of 634851912 is about 859.4569818816.

The spelling of 634851912 in words is "six hundred thirty-four million, eight hundred fifty-one thousand, nine hundred twelve".