3812531566 has 12 divisors (see below), whose sum is σ = 5978252952. Its totient is φ = 1823384156.

The previous prime is 3812531563. The next prime is 3812531579. The reversal of 3812531566 is 6651352183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3812531563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1800706 + ... + 1802821.

It is an arithmetic number, because the mean of its divisors is an integer number (498187746).

Almost surely, 2^3812531566 is an apocalyptic number.

3812531566 is a deficient number, since it is larger than the sum of its proper divisors (2165721386).

3812531566 is a wasteful number, since it uses less digits than its factorization.

3812531566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3603575 (or 3603552 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 3812531566 is about 61745.7007896096. The cubic root of 3812531566 is about 1562.2042538366.

The spelling of 3812531566 in words is "three billion, eight hundred twelve million, five hundred thirty-one thousand, five hundred sixty-six".