6865159123 has 2 divisors, whose sum is σ = 6865159124. Its totient is φ = 6865159122.

The previous prime is 6865159069. The next prime is 6865159151. The reversal of 6865159123 is 3219515686.

6865159123 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6865159123 - 2²¹ = 6863061971 is a prime.

It is a super-2 number, since 2×6865159123² = 94260819568220258258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6865159153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3432579561 + 3432579562.

It is an arithmetic number, because the mean of its divisors is an integer number (3432579562).

Almost surely, 2^6865159123 is an apocalyptic number.

6865159123 is a deficient number, since it is larger than the sum of its proper divisors (1).

6865159123 is an equidigital number, since it uses as much as digits as its factorization.

6865159123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 46.

The square root of 6865159123 is about 82856.2557867540. The cubic root of 6865159123 is about 1900.5685392766.

The spelling of 6865159123 in words is "six billion, eight hundred sixty-five million, one hundred fifty-nine thousand, one hundred twenty-three".