18348653212 has 24 divisors (see below), whose sum is σ = 33016183200. Its totient is φ = 8918634816.

The previous prime is 18348653143. The next prime is 18348653251. The reversal of 18348653212 is 21235684381.

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, 373912 + ... + 420127.

It is an arithmetic number, because the mean of its divisors is an integer number (1375674300).

Almost surely, 2^18348653212 is an apocalyptic number.

It is an amenable number.

18348653212 is a deficient number, since it is larger than the sum of its proper divisors (14667529988).

18348653212 is a wasteful number, since it uses less digits than its factorization.

18348653212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794205 (or 794203 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The spelling of 18348653212 in words is "eighteen billion, three hundred forty-eight million, six hundred fifty-three thousand, two hundred twelve".