229189228693 has 2 divisors, whose sum is σ = 229189228694. Its totient is φ = 229189228692.

The previous prime is 229189228691. The next prime is 229189228699. The reversal of 229189228693 is 396822981922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181822929649 + 47366299044 = 426407^2 + 217638^2 .

It is a cyclic number.

It is not a de Polignac number, because 229189228693 - 2¹ = 229189228691 is a prime.

Together with 229189228691, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229189228691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114594614346 + 114594614347.

It is an arithmetic number, because the mean of its divisors is an integer number (114594614347).

Almost surely, 2^229189228693 is an apocalyptic number.

It is an amenable number.

229189228693 is a deficient number, since it is larger than the sum of its proper divisors (1).

229189228693 is an equidigital number, since it uses as much as digits as its factorization.

229189228693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13436928, while the sum is 61.

The spelling of 229189228693 in words is "two hundred twenty-nine billion, one hundred eighty-nine million, two hundred twenty-eight thousand, six hundred ninety-three".