6404761671271 has 2 divisors, whose sum is σ = 6404761671272. Its totient is φ = 6404761671270.

The previous prime is 6404761671239. The next prime is 6404761671277. The reversal of 6404761671271 is 1721761674046.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6404761671271 - 2⁵ = 6404761671239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6404761671277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3202380835635 + 3202380835636.

It is an arithmetic number, because the mean of its divisors is an integer number (3202380835636).

Almost surely, 2^{6404761671271} is an apocalyptic number.

6404761671271 is a deficient number, since it is larger than the sum of its proper divisors (1).

6404761671271 is an equidigital number, since it uses as much as digits as its factorization.

6404761671271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2370816, while the sum is 52.

The spelling of 6404761671271 in words is "six trillion, four hundred four billion, seven hundred sixty-one million, six hundred seventy-one thousand, two hundred seventy-one".