2068163649 has 12 divisors (see below), whose sum is σ = 2988971856. Its totient is φ = 1378026072.

The previous prime is 2068163641. The next prime is 2068163651. The reversal of 2068163649 is 9463618602.

2068163649 is a `hidden beast` number, since 2 + 0 + 6 + 8 + 1 + 636 + 4 + 9 = 666.

It is not a de Polignac number, because 2068163649 - 2³ = 2068163641 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2068163641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44739 + ... + 78344.

It is an arithmetic number, because the mean of its divisors is an integer number (249080988).

Almost surely, 2^2068163649 is an apocalyptic number.

It is an amenable number.

2068163649 is a deficient number, since it is larger than the sum of its proper divisors (920808207).

2068163649 is a wasteful number, since it uses less digits than its factorization.

2068163649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124956 (or 124953 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 2068163649 is about 45477.0672867106. The cubic root of 2068163649 is about 1274.0749202022.

The spelling of 2068163649 in words is "two billion, sixty-eight million, one hundred sixty-three thousand, six hundred forty-nine".