13855797512 has 12 divisors (see below), whose sum is σ = 25980244605. Its totient is φ = 6927732288.

The previous prime is 13855797499. The next prime is 13855797523. The reversal of 13855797512 is 21579755831.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

13855797512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7063730116 + 6792067396 = 84046^2 + 82414^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=83234.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 312128 + ... + 353744.

Almost surely, 2^13855797512 is an apocalyptic number.

It is an amenable number.

13855797512 is a deficient number, since it is larger than the sum of its proper divisors (12124447093).

13855797512 is an frugal number, since it uses more digits than its factorization.

13855797512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83240 (or 41619 counting only the distinct ones).

The product of its digits is 2646000, while the sum is 53.

The spelling of 13855797512 in words is "thirteen billion, eight hundred fifty-five million, seven hundred ninety-seven thousand, five hundred twelve".