3811425885 has 12 divisors (see below), whose sum is σ = 6606471612. Its totient is φ = 2032760448.

The previous prime is 3811425869. The next prime is 3811425931. The reversal of 3811425885 is 5885241183.

3811425885 is a `hidden beast` number, since 381 + 14 + 258 + 8 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1067132889 + 2744292996 = 32667^2 + 52386^2 .

It is not a de Polignac number, because 3811425885 - 2⁴ = 3811425869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 84698353 = 3811425885 / (3 + 8 + 1 + 1 + 4 + 2 + 5 + 8 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 3811425885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42349132 + ... + 42349221.

It is an arithmetic number, because the mean of its divisors is an integer number (550539301).

Almost surely, 2^3811425885 is an apocalyptic number.

It is an amenable number.

3811425885 is a deficient number, since it is larger than the sum of its proper divisors (2795045727).

3811425885 is a wasteful number, since it uses less digits than its factorization.

3811425885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84698364 (or 84698361 counting only the distinct ones).

The product of its digits is 307200, while the sum is 45.

The square root of 3811425885 is about 61736.7466343992. The cubic root of 3811425885 is about 1562.0532197588.

The spelling of 3811425885 in words is "three billion, eight hundred eleven million, four hundred twenty-five thousand, eight hundred eighty-five".