6851379131 has 2 divisors, whose sum is σ = 6851379132. Its totient is φ = 6851379130.

The previous prime is 6851379121. The next prime is 6851379181. The reversal of 6851379131 is 1319731586.

6851379131 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6851379131 - 2¹⁴ = 6851362747 is a prime.

It is a super-2 number, since 2×6851379131² = 93882791993404630322, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (6851379121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3425689565 + 3425689566.

It is an arithmetic number, because the mean of its divisors is an integer number (3425689566).

Almost surely, 2^6851379131 is an apocalyptic number.

6851379131 is a deficient number, since it is larger than the sum of its proper divisors (1).

6851379131 is an equidigital number, since it uses as much as digits as its factorization.

6851379131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 44.

The square root of 6851379131 is about 82773.0580019852. The cubic root of 6851379131 is about 1899.2960578765.

The spelling of 6851379131 in words is "six billion, eight hundred fifty-one million, three hundred seventy-nine thousand, one hundred thirty-one".