228370728071 has 2 divisors, whose sum is σ = 228370728072. Its totient is φ = 228370728070.

The previous prime is 228370728013. The next prime is 228370728107. The reversal of 228370728071 is 170827073822.

Together with next prime (228370728107) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228370728071 - 2⁶ = 228370728007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228370728371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114185364035 + 114185364036.

It is an arithmetic number, because the mean of its divisors is an integer number (114185364036).

Almost surely, 2^228370728071 is an apocalyptic number.

228370728071 is a deficient number, since it is larger than the sum of its proper divisors (1).

228370728071 is an equidigital number, since it uses as much as digits as its factorization.

228370728071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 526848, while the sum is 47.

The spelling of 228370728071 in words is "two hundred twenty-eight billion, three hundred seventy million, seven hundred twenty-eight thousand, seventy-one".