228299815369477 has 2 divisors, whose sum is σ = 228299815369478. Its totient is φ = 228299815369476.

The previous prime is 228299815369469. The next prime is 228299815369489. The reversal of 228299815369477 is 774963518992822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217165788010116 + 11134027359361 = 14736546^2 + 3336769^2 .

It is a cyclic number.

It is not a de Polignac number, because 228299815369477 - 2³ = 228299815369469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228299815369477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228299815369177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114149907684738 + 114149907684739.

It is an arithmetic number, because the mean of its divisors is an integer number (114149907684739).

Almost surely, 2^{228299815369477} is an apocalyptic number.

It is an amenable number.

228299815369477 is a deficient number, since it is larger than the sum of its proper divisors (1).

228299815369477 is an equidigital number, since it uses as much as digits as its factorization.

228299815369477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6584094720, while the sum is 82.

The spelling of 228299815369477 in words is "two hundred twenty-eight trillion, two hundred ninety-nine billion, eight hundred fifteen million, three hundred sixty-nine thousand, four hundred seventy-seven".