13667811028 has 36 divisors (see below), whose sum is σ = 25514240220. Its totient is φ = 6384366592.

The previous prime is 13667811013. The next prime is 13667811037. The reversal of 13667811028 is 82011876631.

It can be written as a sum of positive squares in 6 ways, for example, as 3510799504 + 10157011524 = 59252^2 + 100782^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1270938 + ... + 1281646.

It is an arithmetic number, because the mean of its divisors is an integer number (708728895).

Almost surely, 2^13667811028 is an apocalyptic number.

It is an amenable number.

13667811028 is a deficient number, since it is larger than the sum of its proper divisors (11846429192).

13667811028 is a wasteful number, since it uses less digits than its factorization.

13667811028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11004 (or 10865 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 13667811028 in words is "thirteen billion, six hundred sixty-seven million, eight hundred eleven thousand, twenty-eight".