634346905068 has 72 divisors (see below), whose sum is σ = 1632188860848. Its totient is φ = 207693698688.

The previous prime is 634346905057. The next prime is 634346905103. The reversal of 634346905068 is 860509643436.

634346905068 is a `hidden beast` number, since 6 + 3 + 4 + 3 + 46 + 90 + 506 + 8 = 666.

634346905068 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96655 + ... + 1130502.

It is an arithmetic number, because the mean of its divisors is an integer number (22669289734).

Almost surely, 2^634346905068 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 634346905068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (816094430424).

634346905068 is an abundant number, since it is smaller than the sum of its proper divisors (997841955780).

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

634346905068 is a wasteful number, since it uses less digits than its factorization.

634346905068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227423 (or 1227418 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 54.

The spelling of 634346905068 in words is "six hundred thirty-four billion, three hundred forty-six million, nine hundred five thousand, sixty-eight".