13855285860 has 144 divisors (see below), whose sum is σ = 42291446400. Its totient is φ = 3387571200.

The previous prime is 13855285831. The next prime is 13855285861. The reversal of 13855285860 is 6858255831.

It is not an unprimeable number, because it can be changed into a prime (13855285861) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1526616 + ... + 1535664.

It is an arithmetic number, because the mean of its divisors is an integer number (293690600).

Almost surely, 2^13855285860 is an apocalyptic number.

13855285860 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 13855285860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21145723200).

13855285860 is an abundant number, since it is smaller than the sum of its proper divisors (28436160540).

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

13855285860 is a wasteful number, since it uses less digits than its factorization.

13855285860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9238 (or 9223 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 51.

The spelling of 13855285860 in words is "thirteen billion, eight hundred fifty-five million, two hundred eighty-five thousand, eight hundred sixty".