417720417211 has 2 divisors, whose sum is σ = 417720417212. Its totient is φ = 417720417210.

The previous prime is 417720417139. The next prime is 417720417241. The reversal of 417720417211 is 112714027714.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 417720417211 - 2⁹ = 417720416699 is a prime.

It is not a weakly prime, because it can be changed into another prime (417720417241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208860208605 + 208860208606.

It is an arithmetic number, because the mean of its divisors is an integer number (208860208606).

Almost surely, 2^417720417211 is an apocalyptic number.

417720417211 is a deficient number, since it is larger than the sum of its proper divisors (1).

417720417211 is an equidigital number, since it uses as much as digits as its factorization.

417720417211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21952, while the sum is 37.

The spelling of 417720417211 in words is "four hundred seventeen billion, seven hundred twenty million, four hundred seventeen thousand, two hundred eleven".