271643454967 has 2 divisors, whose sum is σ = 271643454968. Its totient is φ = 271643454966.

The previous prime is 271643454949. The next prime is 271643454997. The reversal of 271643454967 is 769454346172.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 271643454967 - 2¹¹ = 271643452919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (271643454947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135821727483 + 135821727484.

It is an arithmetic number, because the mean of its divisors is an integer number (135821727484).

Almost surely, 2^271643454967 is an apocalyptic number.

271643454967 is a deficient number, since it is larger than the sum of its proper divisors (1).

271643454967 is an equidigital number, since it uses as much as digits as its factorization.

271643454967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30481920, while the sum is 58.

The spelling of 271643454967 in words is "two hundred seventy-one billion, six hundred forty-three million, four hundred fifty-four thousand, nine hundred sixty-seven".