18442507106 has 8 divisors (see below), whose sum is σ = 28411429980. Its totient is φ = 8972030448.

The previous prime is 18442507099. The next prime is 18442507129. The reversal of 18442507106 is 60170524481.

It can be written as a sum of positive squares in 2 ways, for example, as 16207581481 + 2234925625 = 127309^2 + 47275^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 18442507106.

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, 124611461 + ... + 124611608.

Almost surely, 2^18442507106 is an apocalyptic number.

18442507106 is a deficient number, since it is larger than the sum of its proper divisors (9968922874).

18442507106 is a wasteful number, since it uses less digits than its factorization.

18442507106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249223108.

The product of its (nonzero) digits is 53760, while the sum is 38.

The spelling of 18442507106 in words is "eighteen billion, four hundred forty-two million, five hundred seven thousand, one hundred six".