12847220827204 has 27 divisors (see below), whose sum is σ = 23044895205213. Its totient is φ = 6266793616800.

The previous prime is 12847220827159. The next prime is 12847220827229. The reversal of 12847220827204 is 40272802274821.

The square root of 12847220827204 is 3584302.

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., 619051092804 + 12228169734400 = 786798^2 + 3496880^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 293890909 + ... + 293934619.

Almost surely, 2^{12847220827204} is an apocalyptic number.

12847220827204 is the 3584302-nd square number.

It is an amenable number.

12847220827204 is a deficient number, since it is larger than the sum of its proper divisors (10197674378009).

12847220827204 is an frugal number, since it uses more digits than its factorization.

12847220827204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87508 (or 43754 counting only the distinct ones).

The product of its (nonzero) digits is 1605632, while the sum is 49.

Multiplying 12847220827204 by its sum of digits (49), we get a square (629513820532996 = 25090114²).

The spelling of 12847220827204 in words is "twelve trillion, eight hundred forty-seven billion, two hundred twenty million, eight hundred twenty-seven thousand, two hundred four".