8418208451 has 2 divisors, whose sum is σ = 8418208452. Its totient is φ = 8418208450.

The previous prime is 8418208391. The next prime is 8418208453. The reversal of 8418208451 is 1548028148.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8418208451 - 2⁶ = 8418208387 is a prime.

It is a Sophie Germain prime.

Together with 8418208453, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 8418208399 and 8418208408.

It is not a weakly prime, because it can be changed into another prime (8418208453) 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, 4209104225 + 4209104226.

It is an arithmetic number, because the mean of its divisors is an integer number (4209104226).

Almost surely, 2^8418208451 is an apocalyptic number.

8418208451 is a deficient number, since it is larger than the sum of its proper divisors (1).

8418208451 is an equidigital number, since it uses as much as digits as its factorization.

8418208451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81920, while the sum is 41.

The square root of 8418208451 is about 91750.7953698495. The cubic root of 8418208451 is about 2034.2604633888.

The spelling of 8418208451 in words is "eight billion, four hundred eighteen million, two hundred eight thousand, four hundred fifty-one".