5681430197 has 2 divisors, whose sum is σ = 5681430198. Its totient is φ = 5681430196.

The previous prime is 5681430173. The next prime is 5681430247. The reversal of 5681430197 is 7910341865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3319372996 + 2362057201 = 57614^2 + 48601^2 .

It is a cyclic number.

It is not a de Polignac number, because 5681430197 - 2⁶ = 5681430133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5681430137) 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 as a sum of consecutive naturals, namely, 2840715098 + 2840715099.

It is an arithmetic number, because the mean of its divisors is an integer number (2840715099).

Almost surely, 2^5681430197 is an apocalyptic number.

It is an amenable number.

5681430197 is a deficient number, since it is larger than the sum of its proper divisors (1).

5681430197 is an equidigital number, since it uses as much as digits as its factorization.

5681430197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 5681430197 is about 75375.2625003721. The cubic root of 5681430197 is about 1784.3740213882.

The spelling of 5681430197 in words is "five billion, six hundred eighty-one million, four hundred thirty thousand, one hundred ninety-seven".