522728294377 has 2 divisors, whose sum is σ = 522728294378. Its totient is φ = 522728294376.

The previous prime is 522728294357. The next prime is 522728294393. The reversal of 522728294377 is 773492827225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 519126014016 + 3602280361 = 720504^2 + 60019^2 .

It is a cyclic number.

It is not a de Polignac number, because 522728294377 - 2¹¹ = 522728292329 is a prime.

It is not a weakly prime, because it can be changed into another prime (522728294357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261364147188 + 261364147189.

It is an arithmetic number, because the mean of its divisors is an integer number (261364147189).

Almost surely, 2^522728294377 is an apocalyptic number.

It is an amenable number.

522728294377 is a deficient number, since it is larger than the sum of its proper divisors (1).

522728294377 is an equidigital number, since it uses as much as digits as its factorization.

522728294377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23708160, while the sum is 58.

The spelling of 522728294377 in words is "five hundred twenty-two billion, seven hundred twenty-eight million, two hundred ninety-four thousand, three hundred seventy-seven".