6347520671 has 2 divisors, whose sum is σ = 6347520672. Its totient is φ = 6347520670.

The previous prime is 6347520659. The next prime is 6347520679. The reversal of 6347520671 is 1760257436.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6347520671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6347520679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3173760335 + 3173760336.

It is an arithmetic number, because the mean of its divisors is an integer number (3173760336).

Almost surely, 2^6347520671 is an apocalyptic number.

6347520671 is a deficient number, since it is larger than the sum of its proper divisors (1).

6347520671 is an equidigital number, since it uses as much as digits as its factorization.

6347520671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 6347520671 is about 79671.3290400003. The cubic root of 6347520671 is about 1851.5468602278.

The spelling of 6347520671 in words is "six billion, three hundred forty-seven million, five hundred twenty thousand, six hundred seventy-one".