418616804219 has 2 divisors, whose sum is σ = 418616804220. Its totient is φ = 418616804218.

The previous prime is 418616804171. The next prime is 418616804233. The reversal of 418616804219 is 912408616814.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 418616804219 - 2⁸ = 418616803963 is a prime.

It is a super-2 number, since 2×418616804219² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (418616804269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209308402109 + 209308402110.

It is an arithmetic number, because the mean of its divisors is an integer number (209308402110).

Almost surely, 2^418616804219 is an apocalyptic number.

418616804219 is a deficient number, since it is larger than the sum of its proper divisors (1).

418616804219 is an equidigital number, since it uses as much as digits as its factorization.

418616804219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 50.

The spelling of 418616804219 in words is "four hundred eighteen billion, six hundred sixteen million, eight hundred four thousand, two hundred nineteen".