13287894960 has 160 divisors (see below), whose sum is σ = 44142174720. Its totient is φ = 3294736384.

The previous prime is 13287894953. The next prime is 13287894973. The reversal of 13287894960 is 6949878231.

It is a self number, because there is not a number n which added to its sum of digits gives 13287894960.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319021 + ... + 358259.

It is an arithmetic number, because the mean of its divisors is an integer number (275888592).

Almost surely, 2^13287894960 is an apocalyptic number.

13287894960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13287894960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22071087360).

13287894960 is an abundant number, since it is smaller than the sum of its proper divisors (30854279760).

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

13287894960 is a wasteful number, since it uses less digits than its factorization.

13287894960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39355 (or 39349 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 57.

The spelling of 13287894960 in words is "thirteen billion, two hundred eighty-seven million, eight hundred ninety-four thousand, nine hundred sixty".