648163467396 has 189 divisors, whose sum is σ = 1808636331999. Its totient is φ = 203113536768.

The previous prime is 648163467359. The next prime is 648163467403. The reversal of 648163467396 is 693764361846.

The square root of 648163467396 is 805086.

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

648163467396 is a `hidden beast` number, since 6 + 4 + 8 + 163 + 467 + 3 + 9 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 251716937796 + 396446529600 = 501714^2 + 629640^2 .

It is an unprimeable number.

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 62 ways as a sum of consecutive naturals, for example, 739068510 + ... + 739069386.

Almost surely, 2^648163467396 is an apocalyptic number.

648163467396 is the 805086-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648163467396

648163467396 is an abundant number, since it is smaller than the sum of its proper divisors (1160472864603).

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

648163467396 is an frugal number, since it uses more digits than its factorization.

648163467396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810 (or 899 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 63.

The spelling of 648163467396 in words is "six hundred forty-eight billion, one hundred sixty-three million, four hundred sixty-seven thousand, three hundred ninety-six".