353668685017 has 2 divisors, whose sum is σ = 353668685018. Its totient is φ = 353668685016.

The previous prime is 353668685009. The next prime is 353668685039. The reversal of 353668685017 is 710586866353.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 241494599241 + 112174085776 = 491421^2 + 334924^2 .

It is a cyclic number.

It is not a de Polignac number, because 353668685017 - 2³ = 353668685009 is a prime.

It is not a weakly prime, because it can be changed into another prime (353668685077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176834342508 + 176834342509.

It is an arithmetic number, because the mean of its divisors is an integer number (176834342509).

Almost surely, 2^353668685017 is an apocalyptic number.

It is an amenable number.

353668685017 is a deficient number, since it is larger than the sum of its proper divisors (1).

353668685017 is an equidigital number, since it uses as much as digits as its factorization.

353668685017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21772800, while the sum is 58.

The spelling of 353668685017 in words is "three hundred fifty-three billion, six hundred sixty-eight million, six hundred eighty-five thousand, seventeen".