8404818749 has 2 divisors, whose sum is σ = 8404818750. Its totient is φ = 8404818748.

The previous prime is 8404818733. The next prime is 8404818833. The reversal of 8404818749 is 9478184048.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7126398724 + 1278420025 = 84418^2 + 35755^2 .

It is a cyclic number.

It is not a de Polignac number, because 8404818749 - 2⁴ = 8404818733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8404818749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8404818349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4202409374 + 4202409375.

It is an arithmetic number, because the mean of its divisors is an integer number (4202409375).

Almost surely, 2^8404818749 is an apocalyptic number.

It is an amenable number.

8404818749 is a deficient number, since it is larger than the sum of its proper divisors (1).

8404818749 is an equidigital number, since it uses as much as digits as its factorization.

8404818749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2064384, while the sum is 53.

The square root of 8404818749 is about 91677.7985610475. The cubic root of 8404818749 is about 2033.1813503500.

The spelling of 8404818749 in words is "eight billion, four hundred four million, eight hundred eighteen thousand, seven hundred forty-nine".