6839104840457 has 2 divisors, whose sum is σ = 6839104840458. Its totient is φ = 6839104840456.

The previous prime is 6839104840313. The next prime is 6839104840511. The reversal of 6839104840457 is 7540484019386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3451108736656 + 3387996103801 = 1857716^2 + 1840651^2 .

It is a cyclic number.

It is not a de Polignac number, because 6839104840457 - 2³⁴ = 6821924971273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6839104840396 and 6839104840405.

It is not a weakly prime, because it can be changed into another prime (6839104840657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3419552420228 + 3419552420229.

It is an arithmetic number, because the mean of its divisors is an integer number (3419552420229).

Almost surely, 2^{6839104840457} is an apocalyptic number.

It is an amenable number.

6839104840457 is a deficient number, since it is larger than the sum of its proper divisors (1).

6839104840457 is an equidigital number, since it uses as much as digits as its factorization.

6839104840457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23224320, while the sum is 59.

The spelling of 6839104840457 in words is "six trillion, eight hundred thirty-nine billion, one hundred four million, eight hundred forty thousand, four hundred fifty-seven".