6466377629 has 2 divisors, whose sum is σ = 6466377630. Its totient is φ = 6466377628.

The previous prime is 6466377587. The next prime is 6466377647. The reversal of 6466377629 is 9267736646.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6400800025 + 65577604 = 80005^2 + 8098^2 .

It is a cyclic number.

It is not a de Polignac number, because 6466377629 - 2²⁰ = 6465329053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6466377679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3233188814 + 3233188815.

It is an arithmetic number, because the mean of its divisors is an integer number (3233188815).

Almost surely, 2^6466377629 is an apocalyptic number.

It is an amenable number.

6466377629 is a deficient number, since it is larger than the sum of its proper divisors (1).

6466377629 is an equidigital number, since it uses as much as digits as its factorization.

6466377629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13716864, while the sum is 56.

The square root of 6466377629 is about 80413.7900425045. The cubic root of 6466377629 is about 1863.0321711812.

The spelling of 6466377629 in words is "six billion, four hundred sixty-six million, three hundred seventy-seven thousand, six hundred twenty-nine".