13831128550 has 12 divisors (see below), whose sum is σ = 25725899196. Its totient is φ = 5532451400.

The previous prime is 13831128539. The next prime is 13831128551. The reversal of 13831128550 is 5582113831.

It is a happy number.

13831128550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13831128551) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 138311236 + ... + 138311335.

It is an arithmetic number, because the mean of its divisors is an integer number (2143824933).

Almost surely, 2^13831128550 is an apocalyptic number.

13831128550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13831128550 is a deficient number, since it is larger than the sum of its proper divisors (11894770646).

13831128550 is a wasteful number, since it uses less digits than its factorization.

13831128550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276622583 (or 276622578 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 37.

The spelling of 13831128550 in words is "thirteen billion, eight hundred thirty-one million, one hundred twenty-eight thousand, five hundred fifty".