13287487368 has 64 divisors (see below), whose sum is σ = 35231362560. Its totient is φ = 4161678336.

The previous prime is 13287487361. The next prime is 13287487373. The reversal of 13287487368 is 86378478231.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13287487361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220830 + ... + 274482.

It is an arithmetic number, because the mean of its divisors is an integer number (550490040).

Almost surely, 2^13287487368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13287487368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17615681280).

13287487368 is an abundant number, since it is smaller than the sum of its proper divisors (21943875192).

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

13287487368 is a wasteful number, since it uses less digits than its factorization.

13287487368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54286 (or 54282 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 57.

The spelling of 13287487368 in words is "thirteen billion, two hundred eighty-seven million, four hundred eighty-seven thousand, three hundred sixty-eight".