353640509329 has 2 divisors, whose sum is σ = 353640509330. Its totient is φ = 353640509328.

The previous prime is 353640509293. The next prime is 353640509393. The reversal of 353640509329 is 923905046353.

Together with previous prime (353640509293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 341141269329 + 12499240000 = 584073^2 + 111800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-353640509329 is a prime.

It is not a weakly prime, because it can be changed into another prime (353640501329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176820254664 + 176820254665.

It is an arithmetic number, because the mean of its divisors is an integer number (176820254665).

Almost surely, 2^353640509329 is an apocalyptic number.

It is an amenable number.

353640509329 is a deficient number, since it is larger than the sum of its proper divisors (1).

353640509329 is an equidigital number, since it uses as much as digits as its factorization.

353640509329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2624400, while the sum is 49.

The spelling of 353640509329 in words is "three hundred fifty-three billion, six hundred forty million, five hundred nine thousand, three hundred twenty-nine".