224208872761 has 2 divisors, whose sum is σ = 224208872762. Its totient is φ = 224208872760.

The previous prime is 224208872707. The next prime is 224208872807. The reversal of 224208872761 is 167278802422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124340864400 + 99868008361 = 352620^2 + 316019^2 .

It is a cyclic number.

It is not a de Polignac number, because 224208872761 - 2²⁵ = 224175318329 is a prime.

It is not a weakly prime, because it can be changed into another prime (224208872861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112104436380 + 112104436381.

It is an arithmetic number, because the mean of its divisors is an integer number (112104436381).

Almost surely, 2^224208872761 is an apocalyptic number.

It is an amenable number.

224208872761 is a deficient number, since it is larger than the sum of its proper divisors (1).

224208872761 is an equidigital number, since it uses as much as digits as its factorization.

224208872761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1204224, while the sum is 49.

The spelling of 224208872761 in words is "two hundred twenty-four billion, two hundred eight million, eight hundred seventy-two thousand, seven hundred sixty-one".