634334661228 has 48 divisors (see below), whose sum is σ = 1491932580320. Its totient is φ = 209762265600.

The previous prime is 634334661227. The next prime is 634334661239. The reversal of 634334661228 is 822166433436.

It is not an unprimeable number, because it can be changed into a prime (634334661227) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 531318 + ... + 1245378.

Almost surely, 2^634334661228 is an apocalyptic number.

It is an amenable number.

634334661228 is an abundant number, since it is smaller than the sum of its proper divisors (857597919092).

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

634334661228 is a wasteful number, since it uses less digits than its factorization.

634334661228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714658 (or 714656 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 48.

The spelling of 634334661228 in words is "six hundred thirty-four billion, three hundred thirty-four million, six hundred sixty-one thousand, two hundred twenty-eight".