5238518866687 has 4 divisors (see below), whose sum is σ = 5238575549680. Its totient is φ = 5238462183696.

The previous prime is 5238518866657. The next prime is 5238518866729. The reversal of 5238518866687 is 7866688158325.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5238518866687 - 2¹¹ = 5238518864639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5238518866657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28202643 + ... + 28387780.

It is an arithmetic number, because the mean of its divisors is an integer number (1309643887420).

Almost surely, 2^{5238518866687} is an apocalyptic number.

5238518866687 is a deficient number, since it is larger than the sum of its proper divisors (56682993).

5238518866687 is an equidigital number, since it uses as much as digits as its factorization.

5238518866687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56682992.

The product of its digits is 928972800, while the sum is 73.

The spelling of 5238518866687 in words is "five trillion, two hundred thirty-eight billion, five hundred eighteen million, eight hundred sixty-six thousand, six hundred eighty-seven".