5966649839 has 2 divisors, whose sum is σ = 5966649840. Its totient is φ = 5966649838.

The previous prime is 5966649797. The next prime is 5966649853. The reversal of 5966649839 is 9389466695.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5966649839 - 2¹² = 5966645743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5966649869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2983324919 + 2983324920.

It is an arithmetic number, because the mean of its divisors is an integer number (2983324920).

Almost surely, 2^5966649839 is an apocalyptic number.

5966649839 is a deficient number, since it is larger than the sum of its proper divisors (1).

5966649839 is an equidigital number, since it uses as much as digits as its factorization.

5966649839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75582720, while the sum is 65.

The square root of 5966649839 is about 77244.0925831872. The cubic root of 5966649839 is about 1813.7475987456.

The spelling of 5966649839 in words is "five billion, nine hundred sixty-six million, six hundred forty-nine thousand, eight hundred thirty-nine".