13085981179 has 4 divisors (see below), whose sum is σ = 13439656384. Its totient is φ = 12732305976.

The previous prime is 13085981171. The next prime is 13085981189. The reversal of 13085981179 is 97118958031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13085981179 - 2³ = 13085981171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13085981171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176837547 + ... + 176837620.

It is an arithmetic number, because the mean of its divisors is an integer number (3359914096).

Almost surely, 2^13085981179 is an apocalyptic number.

13085981179 is a deficient number, since it is larger than the sum of its proper divisors (353675205).

13085981179 is an equidigital number, since it uses as much as digits as its factorization.

13085981179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353675204.

The product of its (nonzero) digits is 544320, while the sum is 52.

The spelling of 13085981179 in words is "thirteen billion, eighty-five million, nine hundred eighty-one thousand, one hundred seventy-nine".