3904090967809 has 2 divisors, whose sum is σ = 3904090967810. Its totient is φ = 3904090967808.

The previous prime is 3904090967771. The next prime is 3904090967837. The reversal of 3904090967809 is 9087690904093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2048611102209 + 1855479865600 = 1431297^2 + 1362160^2 .

It is a cyclic number.

It is not a de Polignac number, because 3904090967809 - 2¹³ = 3904090959617 is a prime.

It is not a weakly prime, because it can be changed into another prime (3904090967209) 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, 1952045483904 + 1952045483905.

It is an arithmetic number, because the mean of its divisors is an integer number (1952045483905).

Almost surely, 2^{3904090967809} is an apocalyptic number.

It is an amenable number.

3904090967809 is a deficient number, since it is larger than the sum of its proper divisors (1).

3904090967809 is an equidigital number, since it uses as much as digits as its factorization.

3904090967809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26453952, while the sum is 64.

The spelling of 3904090967809 in words is "three trillion, nine hundred four billion, ninety million, nine hundred sixty-seven thousand, eight hundred nine".