4217356259449 has 2 divisors, whose sum is σ = 4217356259450. Its totient is φ = 4217356259448.

The previous prime is 4217356259437. The next prime is 4217356259483. The reversal of 4217356259449 is 9449526537124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3816971041849 + 400385217600 = 1953707^2 + 632760^2 .

It is a cyclic number.

It is not a de Polignac number, because 4217356259449 - 2¹⁹ = 4217355735161 is a prime.

It is a super-2 number, since 2×4217356259449² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4217356259429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2108678129724 + 2108678129725.

It is an arithmetic number, because the mean of its divisors is an integer number (2108678129725).

Almost surely, 2^{4217356259449} is an apocalyptic number.

It is an amenable number.

4217356259449 is a deficient number, since it is larger than the sum of its proper divisors (1).

4217356259449 is an equidigital number, since it uses as much as digits as its factorization.

4217356259449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65318400, while the sum is 61.

The spelling of 4217356259449 in words is "four trillion, two hundred seventeen billion, three hundred fifty-six million, two hundred fifty-nine thousand, four hundred forty-nine".