523643346349 has 2 divisors, whose sum is σ = 523643346350. Its totient is φ = 523643346348.

The previous prime is 523643346307. The next prime is 523643346361. The reversal of 523643346349 is 943643346325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 269947789225 + 253695557124 = 519565^2 + 503682^2 .

It is a cyclic number.

It is not a de Polignac number, because 523643346349 - 2¹⁹ = 523642822061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 523643346296 and 523643346305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523643346749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261821673174 + 261821673175.

It is an arithmetic number, because the mean of its divisors is an integer number (261821673175).

Almost surely, 2^523643346349 is an apocalyptic number.

It is an amenable number.

523643346349 is a deficient number, since it is larger than the sum of its proper divisors (1).

523643346349 is an equidigital number, since it uses as much as digits as its factorization.

523643346349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16796160, while the sum is 52.

The spelling of 523643346349 in words is "five hundred twenty-three billion, six hundred forty-three million, three hundred forty-six thousand, three hundred forty-nine".