8421475211 has 2 divisors, whose sum is σ = 8421475212. Its totient is φ = 8421475210.

The previous prime is 8421475201. The next prime is 8421475219. The reversal of 8421475211 is 1125741248.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8421475211 is a prime.

It is not a weakly prime, because it can be changed into another prime (8421475219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4210737605 + 4210737606.

It is an arithmetic number, because the mean of its divisors is an integer number (4210737606).

Almost surely, 2^8421475211 is an apocalyptic number.

8421475211 is a deficient number, since it is larger than the sum of its proper divisors (1).

8421475211 is an equidigital number, since it uses as much as digits as its factorization.

8421475211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17920, while the sum is 35.

The square root of 8421475211 is about 91768.5959955801. The cubic root of 8421475211 is about 2034.5235669271.

The spelling of 8421475211 in words is "eight billion, four hundred twenty-one million, four hundred seventy-five thousand, two hundred eleven".