13343728418 has 16 divisors (see below), whose sum is σ = 20102614776. Its totient is φ = 6642894720.

The previous prime is 13343728379. The next prime is 13343728429. The reversal of 13343728418 is 81482734331.

It can be written as a sum of positive squares in 4 ways, for example, as 12497674849 + 846053569 = 111793^2 + 29087^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 762980 + ... + 780272.

Almost surely, 2^13343728418 is an apocalyptic number.

13343728418 is a deficient number, since it is larger than the sum of its proper divisors (6758886358).

13343728418 is a wasteful number, since it uses less digits than its factorization.

13343728418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18949.

The product of its digits is 387072, while the sum is 44.

The spelling of 13343728418 in words is "thirteen billion, three hundred forty-three million, seven hundred twenty-eight thousand, four hundred eighteen".