8418428149 has 2 divisors, whose sum is σ = 8418428150. Its totient is φ = 8418428148.

The previous prime is 8418428119. The next prime is 8418428167. The reversal of 8418428149 is 9418248148.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8104500625 + 313927524 = 90025^2 + 17718^2 .

It is a cyclic number.

It is not a de Polignac number, because 8418428149 - 2¹¹ = 8418426101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8418428119) 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, 4209214074 + 4209214075.

It is an arithmetic number, because the mean of its divisors is an integer number (4209214075).

Almost surely, 2^8418428149 is an apocalyptic number.

It is an amenable number.

8418428149 is a deficient number, since it is larger than the sum of its proper divisors (1).

8418428149 is an equidigital number, since it uses as much as digits as its factorization.

8418428149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 589824, while the sum is 49.

The square root of 8418428149 is about 91751.9926159645. The cubic root of 8418428149 is about 2034.2781599122.

The spelling of 8418428149 in words is "eight billion, four hundred eighteen million, four hundred twenty-eight thousand, one hundred forty-nine".