13821835228 has 24 divisors (see below), whose sum is σ = 25465421520. Its totient is φ = 6546119040.

The previous prime is 13821835213. The next prime is 13821835249. The reversal of 13821835228 is 82253812831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 650208 + ... + 671128.

It is an arithmetic number, because the mean of its divisors is an integer number (1061059230).

Almost surely, 2^13821835228 is an apocalyptic number.

It is an amenable number.

13821835228 is a deficient number, since it is larger than the sum of its proper divisors (11643586292).

13821835228 is a wasteful number, since it uses less digits than its factorization.

13821835228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29637 (or 29635 counting only the distinct ones).

The product of its digits is 184320, while the sum is 43.

The spelling of 13821835228 in words is "thirteen billion, eight hundred twenty-one million, eight hundred thirty-five thousand, two hundred twenty-eight".