8218673401 has 2 divisors, whose sum is σ = 8218673402. Its totient is φ = 8218673400.

The previous prime is 8218673347. The next prime is 8218673413. The reversal of 8218673401 is 1043768128.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5051797776 + 3166875625 = 71076^2 + 56275^2 .

It is a cyclic number.

It is not a de Polignac number, because 8218673401 - 2¹¹ = 8218671353 is a prime.

It is not a weakly prime, because it can be changed into another prime (8218673461) 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, 4109336700 + 4109336701.

It is an arithmetic number, because the mean of its divisors is an integer number (4109336701).

Almost surely, 2^8218673401 is an apocalyptic number.

It is an amenable number.

8218673401 is a deficient number, since it is larger than the sum of its proper divisors (1).

8218673401 is an equidigital number, since it uses as much as digits as its factorization.

8218673401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 8218673401 is about 90656.8993568609. The cubic root of 8218673401 is about 2018.0592248034.

The spelling of 8218673401 in words is "eight billion, two hundred eighteen million, six hundred seventy-three thousand, four hundred one".