228809646899 has 2 divisors, whose sum is σ = 228809646900. Its totient is φ = 228809646898.

The previous prime is 228809646887. The next prime is 228809646911. The reversal of 228809646899 is 998646908822.

It is a balanced prime because it is at equal distance from previous prime (228809646887) and next prime (228809646911).

It is a cyclic number.

It is not a de Polignac number, because 228809646899 - 2²⁸ = 228541211443 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (228809646869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114404823449 + 114404823450.

It is an arithmetic number, because the mean of its divisors is an integer number (114404823450).

Almost surely, 2^228809646899 is an apocalyptic number.

228809646899 is a deficient number, since it is larger than the sum of its proper divisors (1).

228809646899 is an equidigital number, since it uses as much as digits as its factorization.

228809646899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 214990848, while the sum is 71.

The spelling of 228809646899 in words is "two hundred twenty-eight billion, eight hundred nine million, six hundred forty-six thousand, eight hundred ninety-nine".