3664733641 has 2 divisors, whose sum is σ = 3664733642. Its totient is φ = 3664733640.

The previous prime is 3664733593. The next prime is 3664733647. The reversal of 3664733641 is 1463374663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3516015616 + 148718025 = 59296^2 + 12195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3664733641 is a prime.

It is not a weakly prime, because it can be changed into another prime (3664733647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832366820 + 1832366821.

It is an arithmetic number, because the mean of its divisors is an integer number (1832366821).

Almost surely, 2^3664733641 is an apocalyptic number.

It is an amenable number.

3664733641 is a deficient number, since it is larger than the sum of its proper divisors (1).

3664733641 is an equidigital number, since it uses as much as digits as its factorization.

3664733641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 43.

The square root of 3664733641 is about 60537.0435436023. The cubic root of 3664733641 is about 1541.7506432341.

The spelling of 3664733641 in words is "three billion, six hundred sixty-four million, seven hundred thirty-three thousand, six hundred forty-one".