13982021648 has 40 divisors (see below), whose sum is σ = 31035989760. Its totient is φ = 5977624320.

The previous prime is 13982021629. The next prime is 13982021699. The reversal of 13982021648 is 84612028931.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13982021599 and 13982021608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106808 + ... + 198423.

It is an arithmetic number, because the mean of its divisors is an integer number (775899744).

Almost surely, 2^13982021648 is an apocalyptic number.

It is an amenable number.

13982021648 is an abundant number, since it is smaller than the sum of its proper divisors (17053968112).

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

13982021648 is a wasteful number, since it uses less digits than its factorization.

13982021648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305655 (or 305649 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 13982021648 in words is "thirteen billion, nine hundred eighty-two million, twenty-one thousand, six hundred forty-eight".