6431320067 has 2 divisors, whose sum is σ = 6431320068. Its totient is φ = 6431320066.

The previous prime is 6431320001. The next prime is 6431320073. The reversal of 6431320067 is 7600231346.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6431320067 - 2¹⁸ = 6431057923 is a prime.

It is not a weakly prime, because it can be changed into another prime (6431320087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3215660033 + 3215660034.

It is an arithmetic number, because the mean of its divisors is an integer number (3215660034).

Almost surely, 2^6431320067 is an apocalyptic number.

6431320067 is a deficient number, since it is larger than the sum of its proper divisors (1).

6431320067 is an equidigital number, since it uses as much as digits as its factorization.

6431320067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 6431320067 is about 80195.5115140492. The cubic root of 6431320067 is about 1859.6592495415.

The spelling of 6431320067 in words is "six billion, four hundred thirty-one million, three hundred twenty thousand, sixty-seven".