13818909800 has 48 divisors (see below), whose sum is σ = 32144549760. Its totient is φ = 5524882880.

The previous prime is 13818909737. The next prime is 13818909847. The reversal of 13818909800 is 890981831.

It is a happy number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 425747 + ... + 457053.

It is an arithmetic number, because the mean of its divisors is an integer number (669678120).

Almost surely, 2^13818909800 is an apocalyptic number.

13818909800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13818909800 is an abundant number, since it is smaller than the sum of its proper divisors (18325639960).

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

13818909800 is a wasteful number, since it uses less digits than its factorization.

13818909800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33530 (or 33521 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 47.

The spelling of 13818909800 in words is "thirteen billion, eight hundred eighteen million, nine hundred nine thousand, eight hundred".