6466125871 has 2 divisors, whose sum is σ = 6466125872. Its totient is φ = 6466125870.

The previous prime is 6466125857. The next prime is 6466125929. The reversal of 6466125871 is 1785216646.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6466125871 - 2²¹ = 6464028719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6466126871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3233062935 + 3233062936.

It is an arithmetic number, because the mean of its divisors is an integer number (3233062936).

Almost surely, 2^6466125871 is an apocalyptic number.

6466125871 is a deficient number, since it is larger than the sum of its proper divisors (1).

6466125871 is an equidigital number, since it uses as much as digits as its factorization.

6466125871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 46.

The square root of 6466125871 is about 80412.2246365563. The cubic root of 6466125871 is about 1863.0079928149.

The spelling of 6466125871 in words is "six billion, four hundred sixty-six million, one hundred twenty-five thousand, eight hundred seventy-one".