404217315349 has 2 divisors, whose sum is σ = 404217315350. Its totient is φ = 404217315348.

The previous prime is 404217315331. The next prime is 404217315377. The reversal of 404217315349 is 943513712404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260722572100 + 143494743249 = 510610^2 + 378807^2 .

It is a cyclic number.

It is not a de Polignac number, because 404217315349 - 2¹⁷ = 404217184277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404217315319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202108657674 + 202108657675.

It is an arithmetic number, because the mean of its divisors is an integer number (202108657675).

Almost surely, 2^404217315349 is an apocalyptic number.

It is an amenable number.

404217315349 is a deficient number, since it is larger than the sum of its proper divisors (1).

404217315349 is an equidigital number, since it uses as much as digits as its factorization.

404217315349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 404217315349 in words is "four hundred four billion, two hundred seventeen million, three hundred fifteen thousand, three hundred forty-nine".