226521045889 has 2 divisors, whose sum is σ = 226521045890. Its totient is φ = 226521045888.

The previous prime is 226521045823. The next prime is 226521045893. The reversal of 226521045889 is 988540125622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218000279025 + 8520766864 = 466905^2 + 92308^2 .

It is a cyclic number.

It is not a de Polignac number, because 226521045889 - 2¹³ = 226521037697 is a prime.

It is not a weakly prime, because it can be changed into another prime (226521045089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113260522944 + 113260522945.

It is an arithmetic number, because the mean of its divisors is an integer number (113260522945).

Almost surely, 2^226521045889 is an apocalyptic number.

It is an amenable number.

226521045889 is a deficient number, since it is larger than the sum of its proper divisors (1).

226521045889 is an equidigital number, since it uses as much as digits as its factorization.

226521045889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2764800, while the sum is 52.

The spelling of 226521045889 in words is "two hundred twenty-six billion, five hundred twenty-one million, forty-five thousand, eight hundred eighty-nine".