1646848068 has 12 divisors (see below), whose sum is σ = 3842645520. Its totient is φ = 548949352.

The previous prime is 1646848067. The next prime is 1646848081. The reversal of 1646848068 is 8608486461.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1646848068.

It is not an unprimeable number, because it can be changed into a prime (1646848067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68618658 + ... + 68618681.

It is an arithmetic number, because the mean of its divisors is an integer number (320220460).

Almost surely, 2^1646848068 is an apocalyptic number.

It is an amenable number.

1646848068 is an abundant number, since it is smaller than the sum of its proper divisors (2195797452).

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

1646848068 is a wasteful number, since it uses less digits than its factorization.

1646848068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137237346 (or 137237344 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 51.

The square root of 1646848068 is about 40581.3758761331. The cubic root of 1646848068 is about 1180.9128405238.

The spelling of 1646848068 in words is "one billion, six hundred forty-six million, eight hundred forty-eight thousand, sixty-eight".