13671636326 has 4 divisors (see below), whose sum is σ = 20507454492. Its totient is φ = 6835818162.

The previous prime is 13671636281. The next prime is 13671636331. The reversal of 13671636326 is 62363617631.

It is a happy number.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 3417909080 + ... + 3417909083.

It is an arithmetic number, because the mean of its divisors is an integer number (5126863623).

Almost surely, 2^13671636326 is an apocalyptic number.

13671636326 is a deficient number, since it is larger than the sum of its proper divisors (6835818166).

13671636326 is an equidigital number, since it uses as much as digits as its factorization.

13671636326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6835818165.

The product of its digits is 489888, while the sum is 44.

The spelling of 13671636326 in words is "thirteen billion, six hundred seventy-one million, six hundred thirty-six thousand, three hundred twenty-six".