3920038867091 has 2 divisors, whose sum is σ = 3920038867092. Its totient is φ = 3920038867090.

The previous prime is 3920038867009. The next prime is 3920038867163. The reversal of 3920038867091 is 1907688300293.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3920038867091 - 2²² = 3920034672787 is a prime.

It is not a weakly prime, because it can be changed into another prime (3920038867001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1960019433545 + 1960019433546.

It is an arithmetic number, because the mean of its divisors is an integer number (1960019433546).

Almost surely, 2^{3920038867091} is an apocalyptic number.

3920038867091 is a deficient number, since it is larger than the sum of its proper divisors (1).

3920038867091 is an equidigital number, since it uses as much as digits as its factorization.

3920038867091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The spelling of 3920038867091 in words is "three trillion, nine hundred twenty billion, thirty-eight million, eight hundred sixty-seven thousand, ninety-one".