13500263228 has 12 divisors (see below), whose sum is σ = 23834536320. Its totient is φ = 6690395712.

The previous prime is 13500263213. The next prime is 13500263237. The reversal of 13500263228 is 82236200531.

It is a junction number, because it is equal to n+sod(n) for n = 13500263194 and 13500263203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14933468 + ... + 14934371.

It is an arithmetic number, because the mean of its divisors is an integer number (1986211360).

Almost surely, 2^13500263228 is an apocalyptic number.

It is an amenable number.

13500263228 is a deficient number, since it is larger than the sum of its proper divisors (10334273092).

13500263228 is a wasteful number, since it uses less digits than its factorization.

13500263228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29867956 (or 29867954 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 13500263228 its reverse (82236200531), we get a palindrome (95736463759).

The spelling of 13500263228 in words is "thirteen billion, five hundred million, two hundred sixty-three thousand, two hundred twenty-eight".