228012575789 has 2 divisors, whose sum is σ = 228012575790. Its totient is φ = 228012575788.

The previous prime is 228012575671. The next prime is 228012575797. The reversal of 228012575789 is 987575210822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187452629764 + 40559946025 = 432958^2 + 201395^2 .

It is a cyclic number.

It is not a de Polignac number, because 228012575789 - 2⁸ = 228012575533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228012577789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114006287894 + 114006287895.

It is an arithmetic number, because the mean of its divisors is an integer number (114006287895).

Almost surely, 2^228012575789 is an apocalyptic number.

It is an amenable number.

228012575789 is a deficient number, since it is larger than the sum of its proper divisors (1).

228012575789 is an equidigital number, since it uses as much as digits as its factorization.

228012575789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5644800, while the sum is 56.

The spelling of 228012575789 in words is "two hundred twenty-eight billion, twelve million, five hundred seventy-five thousand, seven hundred eighty-nine".