2068513871 has 2 divisors, whose sum is σ = 2068513872. Its totient is φ = 2068513870.

The previous prime is 2068513861. The next prime is 2068513873. The reversal of 2068513871 is 1783158602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2068513871 - 2²² = 2064319567 is a prime.

It is a Sophie Germain prime.

Together with 2068513873, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2068513873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1034256935 + 1034256936.

It is an arithmetic number, because the mean of its divisors is an integer number (1034256936).

Almost surely, 2^2068513871 is an apocalyptic number.

2068513871 is a deficient number, since it is larger than the sum of its proper divisors (1).

2068513871 is an equidigital number, since it uses as much as digits as its factorization.

2068513871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 2068513871 is about 45480.9176578485. The cubic root of 2068513871 is about 1274.1468332546.

The spelling of 2068513871 in words is "two billion, sixty-eight million, five hundred thirteen thousand, eight hundred seventy-one".