16878523289104 has 45 divisors (see below), whose sum is σ = 33332522308813. Its totient is φ = 8279603024576.

The previous prime is 16878523289093. The next prime is 16878523289119. The reversal of 16878523289104 is 40198232587861.

The square root of 16878523289104 is 4108348.

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., 12167678768400 + 4710844520704 = 3488220^2 + 2170448^2 .

It is a super-2 number, since 2×16878523289104² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 870960087 + ... + 870979465.

It is a 1-persistent number, because it is pandigital, but 2⋅16878523289104 = 33757046578208 is not.

Almost surely, 2^{16878523289104} is an apocalyptic number.

16878523289104 is the 4108348-th square number.

It is an amenable number.

16878523289104 is a deficient number, since it is larger than the sum of its proper divisors (16453999019709).

16878523289104 is an frugal number, since it uses more digits than its factorization.

16878523289104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38872 (or 19434 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 64.

The spelling of 16878523289104 in words is "sixteen trillion, eight hundred seventy-eight billion, five hundred twenty-three million, two hundred eighty-nine thousand, one hundred four".