6415420811 has 2 divisors, whose sum is σ = 6415420812. Its totient is φ = 6415420810.

The previous prime is 6415420801. The next prime is 6415420853. The reversal of 6415420811 is 1180245146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6415420811 - 2¹⁸ = 6415158667 is a prime.

It is not a weakly prime, because it can be changed into another prime (6415420801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3207710405 + 3207710406.

It is an arithmetic number, because the mean of its divisors is an integer number (3207710406).

Almost surely, 2^6415420811 is an apocalyptic number.

6415420811 is a deficient number, since it is larger than the sum of its proper divisors (1).

6415420811 is an equidigital number, since it uses as much as digits as its factorization.

6415420811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 6415420811 is about 80096.3220816037. The cubic root of 6415420811 is about 1858.1255262080.

Adding to 6415420811 its reverse (1180245146), we get a palindrome (7595665957).

The spelling of 6415420811 in words is "six billion, four hundred fifteen million, four hundred twenty thousand, eight hundred eleven".