6834980857 has 2 divisors, whose sum is σ = 6834980858. Its totient is φ = 6834980856.

The previous prime is 6834980851. The next prime is 6834980897. The reversal of 6834980857 is 7580894386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5691797136 + 1143183721 = 75444^2 + 33811^2 .

It is a cyclic number.

It is not a de Polignac number, because 6834980857 - 2¹⁵ = 6834948089 is a prime.

It is not a weakly prime, because it can be changed into another prime (6834980851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3417490428 + 3417490429.

It is an arithmetic number, because the mean of its divisors is an integer number (3417490429).

Almost surely, 2^6834980857 is an apocalyptic number.

It is an amenable number.

6834980857 is a deficient number, since it is larger than the sum of its proper divisors (1).

6834980857 is an equidigital number, since it uses as much as digits as its factorization.

6834980857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11612160, while the sum is 58.

The square root of 6834980857 is about 82673.9430352756. The cubic root of 6834980857 is about 1897.7795720439.

The spelling of 6834980857 in words is "six billion, eight hundred thirty-four million, nine hundred eighty thousand, eight hundred fifty-seven".