13281779189 has 16 divisors (see below), whose sum is σ = 15224242176. Its totient is φ = 11350638000.

The previous prime is 13281779131. The next prime is 13281779207. The reversal of 13281779189 is 98197718231.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13281779189 - 2¹² = 13281775093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13281779389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4599104 + ... + 4601990.

It is an arithmetic number, because the mean of its divisors is an integer number (951515136).

Almost surely, 2^13281779189 is an apocalyptic number.

It is an amenable number.

13281779189 is a deficient number, since it is larger than the sum of its proper divisors (1942462987).

13281779189 is a wasteful number, since it uses less digits than its factorization.

13281779189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4616.

The product of its digits is 1524096, while the sum is 56.

The spelling of 13281779189 in words is "thirteen billion, two hundred eighty-one million, seven hundred seventy-nine thousand, one hundred eighty-nine".