638714791160 has 32 divisors (see below), whose sum is σ = 1447447201200. Its totient is φ = 253647886080.

The previous prime is 638714791139. The next prime is 638714791213. The reversal of 638714791160 is 61197417836.

638714791160 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, 57432821 + ... + 57443940.

Almost surely, 2^638714791160 is an apocalyptic number.

It is an amenable number.

638714791160 is an abundant number, since it is smaller than the sum of its proper divisors (808732410040).

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

638714791160 is a wasteful number, since it uses less digits than its factorization.

638714791160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114876911 (or 114876907 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 638714791160 in words is "six hundred thirty-eight billion, seven hundred fourteen million, seven hundred ninety-one thousand, one hundred sixty".