13378539168 has 72 divisors (see below), whose sum is σ = 39699380448. Its totient is φ = 4265619072.

The previous prime is 13378539157. The next prime is 13378539169. The reversal of 13378539168 is 86193587331.

13378539168 is a `hidden beast` number, since 1 + 33 + 78 + 539 + 1 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (13378539169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1003230 + ... + 1016477.

It is an arithmetic number, because the mean of its divisors is an integer number (551380284).

Almost surely, 2^13378539168 is an apocalyptic number.

13378539168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13378539168 is an abundant number, since it is smaller than the sum of its proper divisors (26320841280).

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

13378539168 is a wasteful number, since it uses less digits than its factorization.

13378539168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019746 (or 2019735 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 13378539168 in words is "thirteen billion, three hundred seventy-eight million, five hundred thirty-nine thousand, one hundred sixty-eight".