6430905671 has 2 divisors, whose sum is σ = 6430905672. Its totient is φ = 6430905670.

The previous prime is 6430905641. The next prime is 6430905743. The reversal of 6430905671 is 1765090346.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6430905671 - 2²² = 6426711367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6430905641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3215452835 + 3215452836.

It is an arithmetic number, because the mean of its divisors is an integer number (3215452836).

Almost surely, 2^6430905671 is an apocalyptic number.

6430905671 is a deficient number, since it is larger than the sum of its proper divisors (1).

6430905671 is an equidigital number, since it uses as much as digits as its factorization.

6430905671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 6430905671 is about 80192.9278116219. The cubic root of 6430905671 is about 1859.6193068911.

The spelling of 6430905671 in words is "six billion, four hundred thirty million, nine hundred five thousand, six hundred seventy-one".