228969565469 has 2 divisors, whose sum is σ = 228969565470. Its totient is φ = 228969565468.

The previous prime is 228969565463. The next prime is 228969565481. The reversal of 228969565469 is 964565969822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165295099225 + 63674466244 = 406565^2 + 252338^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228969565469 is a prime.

It is a super-2 number, since 2×228969565469² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228969565463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114484782734 + 114484782735.

It is an arithmetic number, because the mean of its divisors is an integer number (114484782735).

Almost surely, 2^228969565469 is an apocalyptic number.

It is an amenable number.

228969565469 is a deficient number, since it is larger than the sum of its proper divisors (1).

228969565469 is an equidigital number, since it uses as much as digits as its factorization.

228969565469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 503884800, while the sum is 71.

The spelling of 228969565469 in words is "two hundred twenty-eight billion, nine hundred sixty-nine million, five hundred sixty-five thousand, four hundred sixty-nine".