13068861137808 has 480 divisors, whose sum is σ = 40757153589504. Its totient is φ = 3595187441664.

The previous prime is 13068861137803. The next prime is 13068861137809. The reversal of 13068861137808 is 80873116886031.

13068861137808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13068861137803) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3593306166 + ... + 3593309802.

Almost surely, 2^{13068861137808} 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 13068861137808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20378576794752).

13068861137808 is an abundant number, since it is smaller than the sum of its proper divisors (27688292451696).

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

13068861137808 is a wasteful number, since it uses less digits than its factorization.

13068861137808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4119 (or 4106 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 60.

The spelling of 13068861137808 in words is "thirteen trillion, sixty-eight billion, eight hundred sixty-one million, one hundred thirty-seven thousand, eight hundred eight".