634633064464 has 40 divisors (see below), whose sum is σ = 1419746158208. Its totient is φ = 269181619200.

The previous prime is 634633064441. The next prime is 634633064539. The reversal of 634633064464 is 464460336436.

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, 29197212 + ... + 29218939.

Almost surely, 2^634633064464 is an apocalyptic number.

It is an amenable number.

634633064464 is an abundant number, since it is smaller than the sum of its proper divisors (785113093744).

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

634633064464 is a wasteful number, since it uses less digits than its factorization.

634633064464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58416263 (or 58416257 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 49.

The spelling of 634633064464 in words is "six hundred thirty-four billion, six hundred thirty-three million, sixty-four thousand, four hundred sixty-four".