13816640708 has 12 divisors (see below), whose sum is σ = 26039053740. Its totient is φ = 6376911072.

The previous prime is 13816640653. The next prime is 13816640731. The reversal of 13816640708 is 80704661831.

It can be written as a sum of positive squares in 2 ways, for example, as 2145727684 + 11670913024 = 46322^2 + 108032^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132852263 + ... + 132852366.

It is an arithmetic number, because the mean of its divisors is an integer number (2169921145).

Almost surely, 2^13816640708 is an apocalyptic number.

It is an amenable number.

13816640708 is a deficient number, since it is larger than the sum of its proper divisors (12222413032).

13816640708 is a wasteful number, since it uses less digits than its factorization.

13816640708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265704646 (or 265704644 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 13816640708 in words is "thirteen billion, eight hundred sixteen million, six hundred forty thousand, seven hundred eight".