3668378768 has 20 divisors (see below), whose sum is σ = 7111328700. Its totient is φ = 1833197184.

The previous prime is 3668378731. The next prime is 3668378783. The reversal of 3668378768 is 8678738663.

It can be written as a sum of positive squares in 2 ways, for example, as 1938817024 + 1729561744 = 44032^2 + 41588^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3668378768.

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 3 ways as a sum of consecutive naturals, for example, 31043 + ... + 91106.

It is an arithmetic number, because the mean of its divisors is an integer number (355566435).

Almost surely, 2^3668378768 is an apocalyptic number.

It is an amenable number.

3668378768 is a deficient number, since it is larger than the sum of its proper divisors (3442949932).

3668378768 is a wasteful number, since it uses less digits than its factorization.

3668378768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124034 (or 124028 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 62.

The square root of 3668378768 is about 60567.1426435159. The cubic root of 3668378768 is about 1542.2616412316.

The spelling of 3668378768 in words is "three billion, six hundred sixty-eight million, three hundred seventy-eight thousand, seven hundred sixty-eight".