17113479943 has 4 divisors (see below), whose sum is σ = 19558262800. Its totient is φ = 14668697088.

The previous prime is 17113479937. The next prime is 17113479961. The reversal of 17113479943 is 34997431171.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34997431171 = 4001 ⋅8747171.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17113479943 is a prime.

It is the 130819-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17113479923) by changing a digit.

It is a nontrivial repunit in base 130818.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1222391418 + ... + 1222391431.

It is an arithmetic number, because the mean of its divisors is an integer number (4889565700).

Almost surely, 2^17113479943 is an apocalyptic number.

17113479943 is a deficient number, since it is larger than the sum of its proper divisors (2444782857).

17113479943 is an equidigital number, since it uses as much as digits as its factorization.

17113479943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444782856.

The product of its digits is 571536, while the sum is 49.

The spelling of 17113479943 in words is "seventeen billion, one hundred thirteen million, four hundred seventy-nine thousand, nine hundred forty-three".