226678557577 has 2 divisors, whose sum is σ = 226678557578. Its totient is φ = 226678557576.

The previous prime is 226678557541. The next prime is 226678557593. The reversal of 226678557577 is 775755876622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218966907721 + 7711649856 = 467939^2 + 87816^2 .

It is a cyclic number.

It is not a de Polignac number, because 226678557577 - 2²⁷ = 226544339849 is a prime.

It is a super-2 number, since 2×226678557577² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (226678557517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113339278788 + 113339278789.

It is an arithmetic number, because the mean of its divisors is an integer number (113339278789).

Almost surely, 2^226678557577 is an apocalyptic number.

It is an amenable number.

226678557577 is a deficient number, since it is larger than the sum of its proper divisors (1).

226678557577 is an equidigital number, since it uses as much as digits as its factorization.

226678557577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345744000, while the sum is 67.

The spelling of 226678557577 in words is "two hundred twenty-six billion, six hundred seventy-eight million, five hundred fifty-seven thousand, five hundred seventy-seven".