3855406633 has 12 divisors (see below), whose sum is σ = 4177029900. Its totient is φ = 3556927296.

The previous prime is 3855406631. The next prime is 3855406649. The reversal of 3855406633 is 3366045583.

It can be written as a sum of positive squares in 6 ways, for example, as 1059958249 + 2795448384 = 32557^2 + 52872^2 .

It is not a de Polignac number, because 3855406633 - 2¹ = 3855406631 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 3855406633.

It is not an unprimeable number, because it can be changed into a prime (3855406631) 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 in 11 ways as a sum of consecutive naturals, for example, 382543 + ... + 392491.

It is an arithmetic number, because the mean of its divisors is an integer number (348085825).

Almost surely, 2^3855406633 is an apocalyptic number.

It is an amenable number.

3855406633 is a deficient number, since it is larger than the sum of its proper divisors (321623267).

3855406633 is a wasteful number, since it uses less digits than its factorization.

3855406633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12268 (or 12255 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 43.

The square root of 3855406633 is about 62091.9208351618. The cubic root of 3855406633 is about 1568.0385302262.

The spelling of 3855406633 in words is "three billion, eight hundred fifty-five million, four hundred six thousand, six hundred thirty-three".