13878855862884 has 144 divisors (see below), whose sum is σ = 37656818559360. Its totient is φ = 4294643635200.

The previous prime is 13878855862769. The next prime is 13878855862889. The reversal of 13878855862884 is 48826855887831.

13878855862884 is a `hidden beast` number, since 1 + 3 + 8 + 7 + 8 + 8 + 5 + 586 + 28 + 8 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (13878855862889) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15829687 + ... + 16683425.

It is an arithmetic number, because the mean of its divisors is an integer number (261505684440).

Almost surely, 2^{13878855862884} 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 13878855862884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18828409279680).

13878855862884 is an abundant number, since it is smaller than the sum of its proper divisors (23777962696476).

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

13878855862884 is a wasteful number, since it uses less digits than its factorization.

13878855862884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854130 (or 854125 counting only the distinct ones).

The product of its digits is 6606028800, while the sum is 81.

The spelling of 13878855862884 in words is "thirteen trillion, eight hundred seventy-eight billion, eight hundred fifty-five million, eight hundred sixty-two thousand, eight hundred eighty-four".