272434575221 has 2 divisors, whose sum is σ = 272434575222. Its totient is φ = 272434575220.

The previous prime is 272434575191. The next prime is 272434575223. The reversal of 272434575221 is 122575434272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155255700625 + 117178874596 = 394025^2 + 342314^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272434575221 is a prime.

Together with 272434575223, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272434575223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136217287610 + 136217287611.

It is an arithmetic number, because the mean of its divisors is an integer number (136217287611).

Almost surely, 2^272434575221 is an apocalyptic number.

It is an amenable number.

272434575221 is a deficient number, since it is larger than the sum of its proper divisors (1).

272434575221 is an equidigital number, since it uses as much as digits as its factorization.

272434575221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 940800, while the sum is 44.

The spelling of 272434575221 in words is "two hundred seventy-two billion, four hundred thirty-four million, five hundred seventy-five thousand, two hundred twenty-one".