13888221800 has 96 divisors (see below), whose sum is σ = 33480000000. Its totient is φ = 5351458560.

The previous prime is 13888221799. The next prime is 13888221803. The reversal of 13888221800 is 812288831.

It is not an unprimeable number, because it can be changed into a prime (13888221803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2775701 + ... + 2780699.

It is an arithmetic number, because the mean of its divisors is an integer number (348750000).

Almost surely, 2^13888221800 is an apocalyptic number.

13888221800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13888221800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16740000000).

13888221800 is an abundant number, since it is smaller than the sum of its proper divisors (19591778200).

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

13888221800 is a wasteful number, since it uses less digits than its factorization.

13888221800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5523 (or 5514 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 41.

The spelling of 13888221800 in words is "thirteen billion, eight hundred eighty-eight million, two hundred twenty-one thousand, eight hundred".