16834693817 has 2 divisors, whose sum is σ = 16834693818. Its totient is φ = 16834693816.

The previous prime is 16834693781. The next prime is 16834693847. The reversal of 16834693817 is 71839643861.

Together with previous prime (16834693781) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15000370576 + 1834323241 = 122476^2 + 42829^2 .

It is a cyclic number.

It is not a de Polignac number, because 16834693817 - 2¹⁶ = 16834628281 is a prime.

It is not a weakly prime, because it can be changed into another prime (16834693847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8417346908 + 8417346909.

It is an arithmetic number, because the mean of its divisors is an integer number (8417346909).

Almost surely, 2^16834693817 is an apocalyptic number.

It is an amenable number.

16834693817 is a deficient number, since it is larger than the sum of its proper divisors (1).

16834693817 is an equidigital number, since it uses as much as digits as its factorization.

16834693817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 56.

The spelling of 16834693817 in words is "sixteen billion, eight hundred thirty-four million, six hundred ninety-three thousand, eight hundred seventeen".