13687310238 has 48 divisors (see below), whose sum is σ = 32076478224. Its totient is φ = 3882103680.

The previous prime is 13687310213. The next prime is 13687310251. The reversal of 13687310238 is 83201378631.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 13687310238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129633 + ... + 210188.

It is an arithmetic number, because the mean of its divisors is an integer number (668259963).

Almost surely, 2^13687310238 is an apocalyptic number.

13687310238 is an abundant number, since it is smaller than the sum of its proper divisors (18389167986).

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

13687310238 is a wasteful number, since it uses less digits than its factorization.

13687310238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339977 (or 339970 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

Adding to 13687310238 its reverse (83201378631), we get a palindrome (96888688869).

The spelling of 13687310238 in words is "thirteen billion, six hundred eighty-seven million, three hundred ten thousand, two hundred thirty-eight".