2217904463329 has 2 divisors, whose sum is σ = 2217904463330. Its totient is φ = 2217904463328.

The previous prime is 2217904463317. The next prime is 2217904463347. The reversal of 2217904463329 is 9233644097122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1652510250000 + 565394213329 = 1285500^2 + 751927^2 .

It is a cyclic number.

It is not a de Polignac number, because 2217904463329 - 2¹⁵ = 2217904430561 is a prime.

It is not a weakly prime, because it can be changed into another prime (2217904463129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108952231664 + 1108952231665.

It is an arithmetic number, because the mean of its divisors is an integer number (1108952231665).

Almost surely, 2^{2217904463329} is an apocalyptic number.

It is an amenable number.

2217904463329 is a deficient number, since it is larger than the sum of its proper divisors (1).

2217904463329 is an equidigital number, since it uses as much as digits as its factorization.

2217904463329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3919104, while the sum is 52.

The spelling of 2217904463329 in words is "two trillion, two hundred seventeen billion, nine hundred four million, four hundred sixty-three thousand, three hundred twenty-nine".