228696498209 has 2 divisors, whose sum is σ = 228696498210. Its totient is φ = 228696498208.

The previous prime is 228696498197. The next prime is 228696498269. The reversal of 228696498209 is 902894696822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227476533025 + 1219965184 = 476945^2 + 34928^2 .

It is a cyclic number.

It is not a de Polignac number, because 228696498209 - 2²⁴ = 228679720993 is a prime.

It is not a weakly prime, because it can be changed into another prime (228696498269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114348249104 + 114348249105.

It is an arithmetic number, because the mean of its divisors is an integer number (114348249105).

Almost surely, 2^228696498209 is an apocalyptic number.

It is an amenable number.

228696498209 is a deficient number, since it is larger than the sum of its proper divisors (1).

228696498209 is an equidigital number, since it uses as much as digits as its factorization.

228696498209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53747712, while the sum is 65.

The spelling of 228696498209 in words is "two hundred twenty-eight billion, six hundred ninety-six million, four hundred ninety-eight thousand, two hundred nine".