355228339493 has 2 divisors, whose sum is σ = 355228339494. Its totient is φ = 355228339492.

The previous prime is 355228339489. The next prime is 355228339507. The reversal of 355228339493 is 394933822553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216023237089 + 139205102404 = 464783^2 + 373102^2 .

It is an emirp because it is prime and its reverse (394933822553) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 355228339493 - 2² = 355228339489 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355228329493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177614169746 + 177614169747.

It is an arithmetic number, because the mean of its divisors is an integer number (177614169747).

Almost surely, 2^355228339493 is an apocalyptic number.

It is an amenable number.

355228339493 is a deficient number, since it is larger than the sum of its proper divisors (1).

355228339493 is an equidigital number, since it uses as much as digits as its factorization.

355228339493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20995200, while the sum is 56.

The spelling of 355228339493 in words is "three hundred fifty-five billion, two hundred twenty-eight million, three hundred thirty-nine thousand, four hundred ninety-three".