272448478121 has 2 divisors, whose sum is σ = 272448478122. Its totient is φ = 272448478120.

The previous prime is 272448478051. The next prime is 272448478177. The reversal of 272448478121 is 121874844272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159549118096 + 112899360025 = 399436^2 + 336005^2 .

It is a cyclic number.

It is not a de Polignac number, because 272448478121 - 2³⁴ = 255268608937 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 272448478121.

It is not a weakly prime, because it can be changed into another prime (272448478021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136224239060 + 136224239061.

It is an arithmetic number, because the mean of its divisors is an integer number (136224239061).

Almost surely, 2^272448478121 is an apocalyptic number.

It is an amenable number.

272448478121 is a deficient number, since it is larger than the sum of its proper divisors (1).

272448478121 is an equidigital number, since it uses as much as digits as its factorization.

272448478121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1605632, while the sum is 50.

The spelling of 272448478121 in words is "two hundred seventy-two billion, four hundred forty-eight million, four hundred seventy-eight thousand, one hundred twenty-one".