634663025432 has 32 divisors (see below), whose sum is σ = 1307086329600. Its totient is φ = 287558989344.

The previous prime is 634663025401. The next prime is 634663025461. The reversal of 634663025432 is 234520366436.

634663025432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90766388 + ... + 90773379.

It is an arithmetic number, because the mean of its divisors is an integer number (40846447800).

Almost surely, 2^634663025432 is an apocalyptic number.

It is an amenable number.

634663025432 is an abundant number, since it is smaller than the sum of its proper divisors (672423304168).

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

634663025432 is a wasteful number, since it uses less digits than its factorization.

634663025432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181539815 (or 181539811 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 44.

The spelling of 634663025432 in words is "six hundred thirty-four billion, six hundred sixty-three million, twenty-five thousand, four hundred thirty-two".