18442507105 has 32 divisors (see below), whose sum is σ = 25231979520. Its totient is φ = 12809522880.

The previous prime is 18442507099. The next prime is 18442507129. The reversal of 18442507105 is 50170524481.

It is not a de Polignac number, because 18442507105 - 2¹¹ = 18442505057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 822574 + ... + 844696.

It is an arithmetic number, because the mean of its divisors is an integer number (788499360).

Almost surely, 2^18442507105 is an apocalyptic number.

It is an amenable number.

18442507105 is a deficient number, since it is larger than the sum of its proper divisors (6789472415).

18442507105 is a wasteful number, since it uses less digits than its factorization.

18442507105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22821.

The product of its (nonzero) digits is 44800, while the sum is 37.

The spelling of 18442507105 in words is "eighteen billion, four hundred forty-two million, five hundred seven thousand, one hundred five".