3668649041 has 2 divisors, whose sum is σ = 3668649042. Its totient is φ = 3668649040.

The previous prime is 3668649013. The next prime is 3668649059. The reversal of 3668649041 is 1409468663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3624040000 + 44609041 = 60200^2 + 6679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3668649041 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3668679041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1834324520 + 1834324521.

It is an arithmetic number, because the mean of its divisors is an integer number (1834324521).

Almost surely, 2^3668649041 is an apocalyptic number.

It is an amenable number.

3668649041 is a deficient number, since it is larger than the sum of its proper divisors (1).

3668649041 is an equidigital number, since it uses as much as digits as its factorization.

3668649041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 3668649041 is about 60569.3737874183. The cubic root of 3668649041 is about 1542.2995164048.

The spelling of 3668649041 in words is "three billion, six hundred sixty-eight million, six hundred forty-nine thousand, forty-one".