18382622242 has 8 divisors (see below), whose sum is σ = 27595197036. Its totient is φ = 9184223232.

The previous prime is 18382622233. The next prime is 18382622267. The reversal of 18382622242 is 24222628381.

It can be written as a sum of positive squares in 2 ways, for example, as 18081911961 + 300710281 = 134469^2 + 17341^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 18382622195 and 18382622204.

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, 3540703 + ... + 3545890.

Almost surely, 2^18382622242 is an apocalyptic number.

18382622242 is a deficient number, since it is larger than the sum of its proper divisors (9212574794).

18382622242 is a wasteful number, since it uses less digits than its factorization.

18382622242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7087892.

The product of its digits is 147456, while the sum is 40.

The spelling of 18382622242 in words is "eighteen billion, three hundred eighty-two million, six hundred twenty-two thousand, two hundred forty-two".