13981127056 has 40 divisors (see below), whose sum is σ = 29179382400. Its totient is φ = 6451230336.

The previous prime is 13981127053. The next prime is 13981127057. The reversal of 13981127056 is 65072118931.

It is not an unprimeable number, because it can be changed into a prime (13981127053) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1430121 + ... + 1439863.

It is an arithmetic number, because the mean of its divisors is an integer number (729484560).

Almost surely, 2^13981127056 is an apocalyptic number.

13981127056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13981127056 is an abundant number, since it is smaller than the sum of its proper divisors (15198255344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13981127056 is a wasteful number, since it uses less digits than its factorization.

13981127056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16663 (or 16657 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 43.

The spelling of 13981127056 in words is "thirteen billion, nine hundred eighty-one million, one hundred twenty-seven thousand, fifty-six".