271985304421 has 2 divisors, whose sum is σ = 271985304422. Its totient is φ = 271985304420.

The previous prime is 271985304413. The next prime is 271985304511. The reversal of 271985304421 is 124403589172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175593683521 + 96391620900 = 419039^2 + 310470^2 .

It is a cyclic number.

It is not a de Polignac number, because 271985304421 - 2³ = 271985304413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (271985314421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135992652210 + 135992652211.

It is an arithmetic number, because the mean of its divisors is an integer number (135992652211).

Almost surely, 2^271985304421 is an apocalyptic number.

It is an amenable number.

271985304421 is a deficient number, since it is larger than the sum of its proper divisors (1).

271985304421 is an equidigital number, since it uses as much as digits as its factorization.

271985304421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 271985304421 in words is "two hundred seventy-one billion, nine hundred eighty-five million, three hundred four thousand, four hundred twenty-one".