226618419697 has 2 divisors, whose sum is σ = 226618419698. Its totient is φ = 226618419696.

The previous prime is 226618419647. The next prime is 226618419707. The reversal of 226618419697 is 796914816622.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122170521841 + 104447897856 = 349529^2 + 323184^2 .

It is a cyclic number.

It is not a de Polignac number, because 226618419697 - 2³¹ = 224470936049 is a prime.

It is not a weakly prime, because it can be changed into another prime (226618419647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113309209848 + 113309209849.

It is an arithmetic number, because the mean of its divisors is an integer number (113309209849).

Almost surely, 2^226618419697 is an apocalyptic number.

It is an amenable number.

226618419697 is a deficient number, since it is larger than the sum of its proper divisors (1).

226618419697 is an equidigital number, since it uses as much as digits as its factorization.

226618419697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15676416, while the sum is 61.

The spelling of 226618419697 in words is "two hundred twenty-six billion, six hundred eighteen million, four hundred nineteen thousand, six hundred ninety-seven".