18841663922 has 8 divisors (see below), whose sum is σ = 28263897372. Its totient is φ = 9420364800.

The previous prime is 18841663909. The next prime is 18841663931. The reversal of 18841663922 is 22936614881.

It can be written as a sum of positive squares in 2 ways, for example, as 18741883801 + 99780121 = 136901^2 + 9989^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180779 + ... + 265262.

Almost surely, 2^18841663922 is an apocalyptic number.

18841663922 is a deficient number, since it is larger than the sum of its proper divisors (9422233450).

18841663922 is a wasteful number, since it uses less digits than its factorization.

18841663922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467164.

The product of its digits is 995328, while the sum is 50.

The spelling of 18841663922 in words is "eighteen billion, eight hundred forty-one million, six hundred sixty-three thousand, nine hundred twenty-two".