3806445811 has 16 divisors (see below), whose sum is σ = 4424591808. Its totient is φ = 3206966400.

The previous prime is 3806445791. The next prime is 3806445827. The reversal of 3806445811 is 1185446083.

3806445811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3806445811 - 2¹³ = 3806437619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3806445311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 994281 + ... + 998101.

It is an arithmetic number, because the mean of its divisors is an integer number (276536988).

Almost surely, 2^3806445811 is an apocalyptic number.

3806445811 is a deficient number, since it is larger than the sum of its proper divisors (618145997).

3806445811 is a wasteful number, since it uses less digits than its factorization.

3806445811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6222.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 3806445811 is about 61696.4003082838. The cubic root of 3806445811 is about 1561.3725881140.

The spelling of 3806445811 in words is "three billion, eight hundred six million, four hundred forty-five thousand, eight hundred eleven".