13871783860 has 96 divisors (see below), whose sum is σ = 32287973760. Its totient is φ = 4964044800.

The previous prime is 13871783819. The next prime is 13871783867. The reversal of 13871783860 is 6838717831.

It is a junction number, because it is equal to n+sod(n) for n = 13871783798 and 13871783807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13871783867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4443100 + ... + 4446220.

It is an arithmetic number, because the mean of its divisors is an integer number (336333060).

Almost surely, 2^13871783860 is an apocalyptic number.

13871783860 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 13871783860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16143986880).

13871783860 is an abundant number, since it is smaller than the sum of its proper divisors (18416189900).

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

13871783860 is a wasteful number, since it uses less digits than its factorization.

13871783860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3457 (or 3455 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 52.

The spelling of 13871783860 in words is "thirteen billion, eight hundred seventy-one million, seven hundred eighty-three thousand, eight hundred sixty".