5678662109 has 2 divisors, whose sum is σ = 5678662110. Its totient is φ = 5678662108.

The previous prime is 5678662103. The next prime is 5678662151. The reversal of 5678662109 is 9012668765.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4795978009 + 882684100 = 69253^2 + 29710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5678662109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5678662103) 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, 2839331054 + 2839331055.

It is an arithmetic number, because the mean of its divisors is an integer number (2839331055).

Almost surely, 2^5678662109 is an apocalyptic number.

It is an amenable number.

5678662109 is a deficient number, since it is larger than the sum of its proper divisors (1).

5678662109 is an equidigital number, since it uses as much as digits as its factorization.

5678662109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 5678662109 is about 75356.8982177478. The cubic root of 5678662109 is about 1784.0841820031.

The spelling of 5678662109 in words is "five billion, six hundred seventy-eight million, six hundred sixty-two thousand, one hundred nine".