228267642193 has 2 divisors, whose sum is σ = 228267642194. Its totient is φ = 228267642192.

The previous prime is 228267642191. The next prime is 228267642223. The reversal of 228267642193 is 391246762822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225332494864 + 2935147329 = 474692^2 + 54177^2 .

It is a cyclic number.

It is not a de Polignac number, because 228267642193 - 2¹ = 228267642191 is a prime.

It is a super-2 number, since 2×228267642193² (a number of 24 digits) contains 22 as substring.

Together with 228267642191, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 228267642193.

It is not a weakly prime, because it can be changed into another prime (228267642191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114133821096 + 114133821097.

It is an arithmetic number, because the mean of its divisors is an integer number (114133821097).

Almost surely, 2^228267642193 is an apocalyptic number.

It is an amenable number.

228267642193 is a deficient number, since it is larger than the sum of its proper divisors (1).

228267642193 is an equidigital number, since it uses as much as digits as its factorization.

228267642193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 52.

The spelling of 228267642193 in words is "two hundred twenty-eight billion, two hundred sixty-seven million, six hundred forty-two thousand, one hundred ninety-three".