13640032708 has 12 divisors (see below), whose sum is σ = 23923223100. Its totient is φ = 6804826112.

The previous prime is 13640032691. The next prime is 13640032717. The reversal of 13640032708 is 80723004631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3299583364 + 10340449344 = 57442^2 + 101688^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3795541 + ... + 3799132.

It is an arithmetic number, because the mean of its divisors is an integer number (1993601925).

Almost surely, 2^13640032708 is an apocalyptic number.

It is an amenable number.

13640032708 is a deficient number, since it is larger than the sum of its proper divisors (10283190392).

13640032708 is a wasteful number, since it uses less digits than its factorization.

13640032708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7595126 (or 7595124 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 13640032708 in words is "thirteen billion, six hundred forty million, thirty-two thousand, seven hundred eight".