3811988412 has 48 divisors (see below), whose sum is σ = 9891498400. Its totient is φ = 1269561600.

The previous prime is 3811988363. The next prime is 3811988413. The reversal of 3811988412 is 2148891183.

3811988412 is a `hidden beast` number, since 381 + 198 + 84 + 1 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3811988413) 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, 115014 + ... + 144402.

Almost surely, 2^3811988412 is an apocalyptic number.

It is an amenable number.

3811988412 is an abundant number, since it is smaller than the sum of its proper divisors (6079509988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3811988412 is a wasteful number, since it uses less digits than its factorization.

3811988412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30603 (or 30595 counting only the distinct ones).

The product of its digits is 110592, while the sum is 45.

The square root of 3811988412 is about 61741.3023186262. The cubic root of 3811988412 is about 1562.1300636061.

The spelling of 3811988412 in words is "three billion, eight hundred eleven million, nine hundred eighty-eight thousand, four hundred twelve".