3804518287109 has 2 divisors, whose sum is σ = 3804518287110. Its totient is φ = 3804518287108.

The previous prime is 3804518287061. The next prime is 3804518287111. The reversal of 3804518287109 is 9017828154083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2318776699009 + 1485741588100 = 1522753^2 + 1218910^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3804518287109 is a prime.

Together with 3804518287111, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3804518287139) 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, 1902259143554 + 1902259143555.

It is an arithmetic number, because the mean of its divisors is an integer number (1902259143555).

Almost surely, 2^{3804518287109} is an apocalyptic number.

It is an amenable number.

3804518287109 is a deficient number, since it is larger than the sum of its proper divisors (1).

3804518287109 is an equidigital number, since it uses as much as digits as its factorization.

3804518287109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3870720, while the sum is 56.

The spelling of 3804518287109 in words is "three trillion, eight hundred four billion, five hundred eighteen million, two hundred eighty-seven thousand, one hundred nine".