634447534488 has 16 divisors (see below), whose sum is σ = 1586118836280. Its totient is φ = 211482511488.

The previous prime is 634447534459. The next prime is 634447534549. The reversal of 634447534488 is 884435744436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13217656945 + ... + 13217656992.

Almost surely, 2^634447534488 is an apocalyptic number.

It is an amenable number.

634447534488 is an abundant number, since it is smaller than the sum of its proper divisors (951671301792).

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

634447534488 is a wasteful number, since it uses less digits than its factorization.

634447534488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26435313946 (or 26435313942 counting only the distinct ones).

The product of its digits is 123863040, while the sum is 60.

The spelling of 634447534488 in words is "six hundred thirty-four billion, four hundred forty-seven million, five hundred thirty-four thousand, four hundred eighty-eight".