228660862543 has 2 divisors, whose sum is σ = 228660862544. Its totient is φ = 228660862542.

The previous prime is 228660862523. The next prime is 228660862601. The reversal of 228660862543 is 345268066822.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228660862543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228660862523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114330431271 + 114330431272.

It is an arithmetic number, because the mean of its divisors is an integer number (114330431272).

Almost surely, 2^228660862543 is an apocalyptic number.

228660862543 is a deficient number, since it is larger than the sum of its proper divisors (1).

228660862543 is an equidigital number, since it uses as much as digits as its factorization.

228660862543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6635520, while the sum is 52.

The spelling of 228660862543 in words is "two hundred twenty-eight billion, six hundred sixty million, eight hundred sixty-two thousand, five hundred forty-three".