228666852461 has 2 divisors, whose sum is σ = 228666852462. Its totient is φ = 228666852460.

The previous prime is 228666852451. The next prime is 228666852467. The reversal of 228666852461 is 164258666822.

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., 227844883561 + 821968900 = 477331^2 + 28670^2 .

It is a cyclic number.

It is not a de Polignac number, because 228666852461 - 2²² = 228662658157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228666852397 and 228666852406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228666852467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114333426230 + 114333426231.

It is an arithmetic number, because the mean of its divisors is an integer number (114333426231).

Almost surely, 2^228666852461 is an apocalyptic number.

It is an amenable number.

228666852461 is a deficient number, since it is larger than the sum of its proper divisors (1).

228666852461 is an equidigital number, since it uses as much as digits as its factorization.

228666852461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13271040, while the sum is 56.

The spelling of 228666852461 in words is "two hundred twenty-eight billion, six hundred sixty-six million, eight hundred fifty-two thousand, four hundred sixty-one".