18784325244464 has 80 divisors (see below), whose sum is σ = 39284868357504. Its totient is φ = 8649642163200.

The previous prime is 18784325244409. The next prime is 18784325244469. The reversal of 18784325244464 is 46444252348781.

It is a junction number, because it is equal to n+sod(n) for n = 18784325244397 and 18784325244406.

It is not an unprimeable number, because it can be changed into a prime (18784325244469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1238002382 + ... + 1238017554.

Almost surely, 2^{18784325244464} is an apocalyptic number.

It is an amenable number.

18784325244464 is an abundant number, since it is smaller than the sum of its proper divisors (20500543113040).

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

18784325244464 is a wasteful number, since it uses less digits than its factorization.

18784325244464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28566 (or 28560 counting only the distinct ones).

The product of its digits is 165150720, while the sum is 62.

The spelling of 18784325244464 in words is "eighteen trillion, seven hundred eighty-four billion, three hundred twenty-five million, two hundred forty-four thousand, four hundred sixty-four".