3361865729 has 2 divisors, whose sum is σ = 3361865730. Its totient is φ = 3361865728.

The previous prime is 3361865671. The next prime is 3361865779. The reversal of 3361865729 is 9275681633.

It is an a-pointer prime, because the next prime (3361865779) can be obtained adding 3361865729 to its sum of digits (50).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1958239504 + 1403626225 = 44252^2 + 37465^2 .

It is a cyclic number.

It is not a de Polignac number, because 3361865729 - 2¹⁶ = 3361800193 is a prime.

It is a super-2 number, since 2×3361865729² = 22604282359649402882, which contains 22 as substring.

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 (3361865779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1680932864 + 1680932865.

It is an arithmetic number, because the mean of its divisors is an integer number (1680932865).

It is a Proth number, since it is equal to 25649 ⋅ 2¹⁷ + 1 and 25649 < 2¹⁷.

Almost surely, 2^3361865729 is an apocalyptic number.

It is an amenable number.

3361865729 is a deficient number, since it is larger than the sum of its proper divisors (1).

3361865729 is an equidigital number, since it uses as much as digits as its factorization.

3361865729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 50.

The square root of 3361865729 is about 57981.5981928750. The cubic root of 3361865729 is about 1498.0516524644.

The spelling of 3361865729 in words is "three billion, three hundred sixty-one million, eight hundred sixty-five thousand, seven hundred twenty-nine".