3811444385 has 16 divisors (see below), whose sum is σ = 5325751296. Its totient is φ = 2564248128.

The previous prime is 3811444381. The next prime is 3811444423. The reversal of 3811444385 is 5834441183.

It is a cyclic number.

It is not a de Polignac number, because 3811444385 - 2² = 3811444381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3811444381) 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, 1025489 + ... + 1029198.

It is an arithmetic number, because the mean of its divisors is an integer number (332859456).

Almost surely, 2^3811444385 is an apocalyptic number.

3811444385 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3811444385 is a deficient number, since it is larger than the sum of its proper divisors (1514306911).

3811444385 is a wasteful number, since it uses less digits than its factorization.

3811444385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054752.

The product of its digits is 184320, while the sum is 41.

The square root of 3811444385 is about 61736.8964639461. The cubic root of 3811444385 is about 1562.0557470665.

The spelling of 3811444385 in words is "three billion, eight hundred eleven million, four hundred forty-four thousand, three hundred eighty-five".