6506810447 has 2 divisors, whose sum is σ = 6506810448. Its totient is φ = 6506810446.

The previous prime is 6506810419. The next prime is 6506810459. The reversal of 6506810447 is 7440186056.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6506810447 - 2³⁰ = 5433068623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6506810467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3253405223 + 3253405224.

It is an arithmetic number, because the mean of its divisors is an integer number (3253405224).

Almost surely, 2^6506810447 is an apocalyptic number.

6506810447 is a deficient number, since it is larger than the sum of its proper divisors (1).

6506810447 is an equidigital number, since it uses as much as digits as its factorization.

6506810447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 6506810447 is about 80664.8030246154. The cubic root of 6506810447 is about 1866.9071475502.

The spelling of 6506810447 in words is "six billion, five hundred six million, eight hundred ten thousand, four hundred forty-seven".