3668683129 has 4 divisors (see below), whose sum is σ = 3687306084. Its totient is φ = 3650060176.

The previous prime is 3668683111. The next prime is 3668683141. The reversal of 3668683129 is 9213868663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9213868663 = 1163 ⋅7922501.

It can be written as a sum of positive squares in 2 ways, for example, as 1923699600 + 1744983529 = 43860^2 + 41773^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3668683129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3668653129) 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 in 3 ways as a sum of consecutive naturals, for example, 9311182 + ... + 9311575.

It is an arithmetic number, because the mean of its divisors is an integer number (921826521).

Almost surely, 2^3668683129 is an apocalyptic number.

It is an amenable number.

3668683129 is a deficient number, since it is larger than the sum of its proper divisors (18622955).

3668683129 is a wasteful number, since it uses less digits than its factorization.

3668683129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18622954.

The product of its digits is 2239488, while the sum is 52.

The square root of 3668683129 is about 60569.6551831030. The cubic root of 3668683129 is about 1542.3042932534.

The spelling of 3668683129 in words is "three billion, six hundred sixty-eight million, six hundred eighty-three thousand, one hundred twenty-nine".