13971623552 has 32 divisors (see below), whose sum is σ = 29299051200. Its totient is φ = 6618136320.

The previous prime is 13971623527. The next prime is 13971623579. The reversal of 13971623552 is 25532617931.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2870024 + ... + 2874887.

It is an arithmetic number, because the mean of its divisors is an integer number (915595350).

Almost surely, 2^13971623552 is an apocalyptic number.

It is an amenable number.

13971623552 is an abundant number, since it is smaller than the sum of its proper divisors (15327427648).

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

13971623552 is an equidigital number, since it uses as much as digits as its factorization.

13971623552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5744944 (or 5744932 counting only the distinct ones).

The product of its digits is 340200, while the sum is 44.

The spelling of 13971623552 in words is "thirteen billion, nine hundred seventy-one million, six hundred twenty-three thousand, five hundred fifty-two".