18445370224 has 20 divisors (see below), whose sum is σ = 35743285944. Its totient is φ = 9221296448.

The previous prime is 18445370197. The next prime is 18445370267. The reversal of 18445370224 is 42207354481.

It is a congruent number.

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, 27339 + ... + 194005.

Almost surely, 2^18445370224 is an apocalyptic number.

It is an amenable number.

18445370224 is a deficient number, since it is larger than the sum of its proper divisors (17297915720).

18445370224 is a wasteful number, since it uses less digits than its factorization.

18445370224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173592 (or 173586 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 40.

The spelling of 18445370224 in words is "eighteen billion, four hundred forty-five million, three hundred seventy thousand, two hundred twenty-four".