6405000211 has 2 divisors, whose sum is σ = 6405000212. Its totient is φ = 6405000210.

The previous prime is 6405000209. The next prime is 6405000221. The reversal of 6405000211 is 1120005046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6405000211 - 2¹ = 6405000209 is a prime.

Together with 6405000209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6405000221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3202500105 + 3202500106.

It is an arithmetic number, because the mean of its divisors is an integer number (3202500106).

Almost surely, 2^6405000211 is an apocalyptic number.

6405000211 is a deficient number, since it is larger than the sum of its proper divisors (1).

6405000211 is an equidigital number, since it uses as much as digits as its factorization.

6405000211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 6405000211 is about 80031.2452171026. The cubic root of 6405000211 is about 1857.1189268184.

Adding to 6405000211 its reverse (1120005046), we get a palindrome (7525005257).

The spelling of 6405000211 in words is "six billion, four hundred five million, two hundred eleven", and thus it is an aban number.