3661736693 has 2 divisors, whose sum is σ = 3661736694. Its totient is φ = 3661736692.

The previous prime is 3661736671. The next prime is 3661736737. The reversal of 3661736693 is 3966371663.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3558957649 + 102779044 = 59657^2 + 10138^2 .

It is a cyclic number.

It is not a de Polignac number, because 3661736693 - 2⁶ = 3661736629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3661736633) 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, 1830868346 + 1830868347.

It is an arithmetic number, because the mean of its divisors is an integer number (1830868347).

Almost surely, 2^3661736693 is an apocalyptic number.

It is an amenable number.

3661736693 is a deficient number, since it is larger than the sum of its proper divisors (1).

3661736693 is an equidigital number, since it uses as much as digits as its factorization.

3661736693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2204496, while the sum is 50.

The square root of 3661736693 is about 60512.2854716296. The cubic root of 3661736693 is about 1541.3302573740.

The spelling of 3661736693 in words is "three billion, six hundred sixty-one million, seven hundred thirty-six thousand, six hundred ninety-three".