13887885344 has 48 divisors (see below), whose sum is σ = 28977841368. Its totient is φ = 6529216512.

The previous prime is 13887885329. The next prime is 13887885367. The reversal of 13887885344 is 44358878831.

It can be written as a sum of positive squares in 4 ways, for example, as 13000560400 + 887324944 = 114020^2 + 29788^2 .

It is an unprimeable number.

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, 582914 + ... + 606270.

Almost surely, 2^13887885344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13887885344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14488920684).

13887885344 is an abundant number, since it is smaller than the sum of its proper divisors (15089956024).

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

13887885344 is a wasteful number, since it uses less digits than its factorization.

13887885344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24477 (or 24469 counting only the distinct ones).

The product of its digits is 20643840, while the sum is 59.

The spelling of 13887885344 in words is "thirteen billion, eight hundred eighty-seven million, eight hundred eighty-five thousand, three hundred forty-four".