18212242952 has 12 divisors (see below), whose sum is σ = 34148671245. Its totient is φ = 9105930624.

The previous prime is 18212242943. The next prime is 18212242963. The reversal of 18212242952 is 25924221281.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 14523624196 + 3688618756 = 120514^2 + 60734^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=95426.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 357848 + ... + 405560.

Almost surely, 2^18212242952 is an apocalyptic number.

It is an amenable number.

18212242952 is a deficient number, since it is larger than the sum of its proper divisors (15936428293).

18212242952 is an frugal number, since it uses more digits than its factorization.

18212242952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95432 (or 47715 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The spelling of 18212242952 in words is "eighteen billion, two hundred twelve million, two hundred forty-two thousand, nine hundred fifty-two".