219549245353 has 2 divisors, whose sum is σ = 219549245354. Its totient is φ = 219549245352.

The previous prime is 219549245089. The next prime is 219549245371. The reversal of 219549245353 is 353542945912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213288796224 + 6260449129 = 461832^2 + 79123^2 .

It is a cyclic number.

It is not a de Polignac number, because 219549245353 - 2⁹ = 219549244841 is a prime.

It is a super-2 number, since 2×219549245353² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 219549245353.

It is not a weakly prime, because it can be changed into another prime (219549255353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109774622676 + 109774622677.

It is an arithmetic number, because the mean of its divisors is an integer number (109774622677).

Almost surely, 2^219549245353 is an apocalyptic number.

It is an amenable number.

219549245353 is a deficient number, since it is larger than the sum of its proper divisors (1).

219549245353 is an equidigital number, since it uses as much as digits as its factorization.

219549245353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832000, while the sum is 52.

The spelling of 219549245353 in words is "two hundred nineteen billion, five hundred forty-nine million, two hundred forty-five thousand, three hundred fifty-three".