648852804196 has 9 divisors (see below), whose sum is σ = 1135495226649. Its totient is φ = 324425596584.

The previous prime is 648852804181. The next prime is 648852804239. The reversal of 648852804196 is 691408258846.

The square root of 648852804196 is 805514.

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., 14383204900 + 634469599296 = 119930^2 + 796536^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1409650 + ... + 1812406.

Almost surely, 2^648852804196 is an apocalyptic number.

648852804196 is the 805514-th square number.

It is an amenable number.

648852804196 is a deficient number, since it is larger than the sum of its proper divisors (486642422453).

648852804196 is an frugal number, since it uses more digits than its factorization.

648852804196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805518 (or 402759 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 61.

The spelling of 648852804196 in words is "six hundred forty-eight billion, eight hundred fifty-two million, eight hundred four thousand, one hundred ninety-six".