271251680369 has 2 divisors, whose sum is σ = 271251680370. Its totient is φ = 271251680368.

The previous prime is 271251680341. The next prime is 271251680393. The reversal of 271251680369 is 963086152172.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224190886144 + 47060794225 = 473488^2 + 216935^2 .

It is a cyclic number.

It is not a de Polignac number, because 271251680369 - 2²⁰ = 271250631793 is a prime.

It is a super-2 number, since 2×271251680369² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (271251680569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135625840184 + 135625840185.

It is an arithmetic number, because the mean of its divisors is an integer number (135625840185).

Almost surely, 2^271251680369 is an apocalyptic number.

It is an amenable number.

271251680369 is a deficient number, since it is larger than the sum of its proper divisors (1).

271251680369 is an equidigital number, since it uses as much as digits as its factorization.

271251680369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 271251680369 in words is "two hundred seventy-one billion, two hundred fifty-one million, six hundred eighty thousand, three hundred sixty-nine".