638587048014 has 96 divisors (see below), whose sum is σ = 1464441189120. Its totient is φ = 200783577600.

The previous prime is 638587047997. The next prime is 638587048079. The reversal of 638587048014 is 410840785836.

638587048014 is a `hidden beast` number, since 6 + 3 + 8 + 587 + 0 + 48 + 0 + 14 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25542232 + ... + 25567220.

It is an arithmetic number, because the mean of its divisors is an integer number (15254595720).

Almost surely, 2^638587048014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 638587048014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (732220594560).

638587048014 is an abundant number, since it is smaller than the sum of its proper divisors (825854141106).

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

638587048014 is a wasteful number, since it uses less digits than its factorization.

638587048014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26186 (or 26183 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 638587048014 in words is "six hundred thirty-eight billion, five hundred eighty-seven million, forty-eight thousand, fourteen".