3736767340661 has 2 divisors, whose sum is σ = 3736767340662. Its totient is φ = 3736767340660.

The previous prime is 3736767340651. The next prime is 3736767340687. The reversal of 3736767340661 is 1660437676373.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3734579440036 + 2187900625 = 1932506^2 + 46775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3736767340661 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3736767340661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3736767340651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1868383670330 + 1868383670331.

It is an arithmetic number, because the mean of its divisors is an integer number (1868383670331).

Almost surely, 2^{3736767340661} is an apocalyptic number.

It is an amenable number.

3736767340661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3736767340661 is an equidigital number, since it uses as much as digits as its factorization.

3736767340661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48009024, while the sum is 59.

The spelling of 3736767340661 in words is "three trillion, seven hundred thirty-six billion, seven hundred sixty-seven million, three hundred forty thousand, six hundred sixty-one".