834618319849 has 2 divisors, whose sum is σ = 834618319850. Its totient is φ = 834618319848.

The previous prime is 834618319841. The next prime is 834618319853. The reversal of 834618319849 is 948913816438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 702654680025 + 131963639824 = 838245^2 + 363268^2 .

It is a cyclic number.

It is not a de Polignac number, because 834618319849 - 2³ = 834618319841 is a prime.

It is not a weakly prime, because it can be changed into another prime (834618319841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 417309159924 + 417309159925.

It is an arithmetic number, because the mean of its divisors is an integer number (417309159925).

Almost surely, 2^834618319849 is an apocalyptic number.

It is an amenable number.

834618319849 is a deficient number, since it is larger than the sum of its proper divisors (1).

834618319849 is an equidigital number, since it uses as much as digits as its factorization.

834618319849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35831808, while the sum is 64.

The spelling of 834618319849 in words is "eight hundred thirty-four billion, six hundred eighteen million, three hundred nineteen thousand, eight hundred forty-nine".