3855408611 has 4 divisors (see below), whose sum is σ = 3860105424. Its totient is φ = 3850711800.

The previous prime is 3855408587. The next prime is 3855408619. The reversal of 3855408611 is 1168045583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1168045583 = 353 ⋅3308911.

It is a cyclic number.

It is not a de Polignac number, because 3855408611 - 2¹⁰ = 3855407587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3855408619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2347175 + ... + 2348816.

It is an arithmetic number, because the mean of its divisors is an integer number (965026356).

Almost surely, 2^3855408611 is an apocalyptic number.

3855408611 is a deficient number, since it is larger than the sum of its proper divisors (4696813).

3855408611 is an equidigital number, since it uses as much as digits as its factorization.

3855408611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4696812.

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 3855408611 is about 62091.9367631579. The cubic root of 3855408611 is about 1568.0387983846.

The spelling of 3855408611 in words is "three billion, eight hundred fifty-five million, four hundred eight thousand, six hundred eleven".