2063645768 has 12 divisors (see below), whose sum is σ = 3869576745. Its totient is φ = 1031758640.

The previous prime is 2063645741. The next prime is 2063645797. The reversal of 2063645768 is 8675463602.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 1237773124 + 825872644 = 35182^2 + 28738^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=32122.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 120458 + ... + 136518.

Almost surely, 2^2063645768 is an apocalyptic number.

It is an amenable number.

2063645768 is a deficient number, since it is larger than the sum of its proper divisors (1805930977).

2063645768 is an frugal number, since it uses more digits than its factorization.

2063645768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32128 (or 16063 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 47.

The square root of 2063645768 is about 45427.3680505486. The cubic root of 2063645768 is about 1273.1465095702.

The spelling of 2063645768 in words is "two billion, sixty-three million, six hundred forty-five thousand, seven hundred sixty-eight".