3908122861811 has 16 divisors (see below), whose sum is σ = 4470560189184. Its totient is φ = 3346720028064.

The previous prime is 3908122861777. The next prime is 3908122861843. The reversal of 3908122861811 is 1181682218093.

It is not a de Polignac number, because 3908122861811 - 2¹⁴ = 3908122845427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3908122861811.

It is not an unprimeable number, because it can be changed into a prime (3908122861711) 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 in 15 ways as a sum of consecutive naturals, for example, 52275320 + ... + 52350026.

It is an arithmetic number, because the mean of its divisors is an integer number (279410011824).

Almost surely, 2^{3908122861811} is an apocalyptic number.

3908122861811 is a deficient number, since it is larger than the sum of its proper divisors (562437327373).

3908122861811 is a wasteful number, since it uses less digits than its factorization.

3908122861811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81530.

The product of its (nonzero) digits is 331776, while the sum is 50.

The spelling of 3908122861811 in words is "three trillion, nine hundred eight billion, one hundred twenty-two million, eight hundred sixty-one thousand, eight hundred eleven".