13169378268 has 144 divisors (see below), whose sum is σ = 37136080800. Its totient is φ = 3917168640.

The previous prime is 13169378263. The next prime is 13169378279. The reversal of 13169378268 is 86287396131.

13169378268 is a `hidden beast` number, since 1 + 3 + 1 + 6 + 9 + 378 + 268 = 666.

13169378268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13169378263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 805180 + ... + 821372.

It is an arithmetic number, because the mean of its divisors is an integer number (257889450).

Almost surely, 2^13169378268 is an apocalyptic number.

13169378268 is a gapful number since it is divisible by the number (18) 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 13169378268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18568040400).

13169378268 is an abundant number, since it is smaller than the sum of its proper divisors (23966702532).

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

13169378268 is a wasteful number, since it uses less digits than its factorization.

13169378268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16292 (or 16287 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The spelling of 13169378268 in words is "thirteen billion, one hundred sixty-nine million, three hundred seventy-eight thousand, two hundred sixty-eight".