18445573456224 has 48 divisors (see below), whose sum is σ = 48622222978560. Its totient is φ = 6122798433920.

The previous prime is 18445573456199. The next prime is 18445573456231. The reversal of 18445573456224 is 42265437554481.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401946492 + ... + 401992379.

It is an arithmetic number, because the mean of its divisors is an integer number (1012962978720).

Almost surely, 2^{18445573456224} is an apocalyptic number.

It is an amenable number.

18445573456224 is an abundant number, since it is smaller than the sum of its proper divisors (30176649522336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18445573456224 is a wasteful number, since it uses less digits than its factorization.

18445573456224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803939123 (or 803939115 counting only the distinct ones).

The product of its digits is 129024000, while the sum is 60.

The spelling of 18445573456224 in words is "eighteen trillion, four hundred forty-five billion, five hundred seventy-three million, four hundred fifty-six thousand, two hundred twenty-four".