13068578281 has 16 divisors (see below), whose sum is σ = 14313000960. Its totient is φ = 11833652880.

The previous prime is 13068578261. The next prime is 13068578287. The reversal of 13068578281 is 18287586031.

It is a cyclic number.

It is not a de Polignac number, because 13068578281 - 2¹⁹ = 13068053993 is a prime.

It is a super-2 number, since 2×13068578281² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13068578287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3249690 + ... + 3253708.

It is an arithmetic number, because the mean of its divisors is an integer number (894562560).

Almost surely, 2^13068578281 is an apocalyptic number.

13068578281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13068578281 is a deficient number, since it is larger than the sum of its proper divisors (1244422679).

13068578281 is a wasteful number, since it uses less digits than its factorization.

13068578281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5124.

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 13068578281 in words is "thirteen billion, sixty-eight million, five hundred seventy-eight thousand, two hundred eighty-one".