16784491284544 has 63 divisors (see below), whose sum is σ = 34496789859597. Its totient is φ = 8102399010048.

The previous prime is 16784491284541. The next prime is 16784491284601. The reversal of 16784491284544 is 44548219448761.

The square root of 16784491284544 is 4096888.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 8801380090944 + 7983111193600 = 2966712^2 + 2825440^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16784491284544.

It is not an unprimeable number, because it can be changed into a prime (16784491284541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 950469187 + ... + 950486845.

Almost surely, 2^{16784491284544} is an apocalyptic number.

16784491284544 is the 4096888-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16784491284544

16784491284544 is an abundant number, since it is smaller than the sum of its proper divisors (17712298575053).

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

16784491284544 is an frugal number, since it uses more digits than its factorization.

16784491284544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35388 (or 17690 counting only the distinct ones).

The product of its digits is 247726080, while the sum is 67.

The spelling of 16784491284544 in words is "sixteen trillion, seven hundred eighty-four billion, four hundred ninety-one million, two hundred eighty-four thousand, five hundred forty-four".